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2673: All Saints

The unclued lights form four trios each associated with one of four theme words which solvers must discover and which do not appear in the grid. The 27 unchecked letters of these unclued lights for the wholly irrelevant comment: SO, DOC, CHARM EVELYN, GIRL FROM BBC. Across 9            Political meeting providing currency on top of

2670: V

The unclued lights (one of three words and two of two words), individually and one pair, can be verified in conjunction with the same headword in Brewer.                   Across 10            Where to find H or C readily available (2,3) 11            Rashford without minute deposit on the cornea (5) 13            Gold miners circling Lochnagar, say (5)

2667: Orbital

The unclued lights are of a kind and are listed in Chambers. Across 1    Dry duck takes in energy drink (8) 6    Least exciting exam takes a minute (6) 10    Place for improvement? (8,4) 11    Man of note could break galley up – regularly (5) 13    Snapshot taken last month around Ohio for US novelist

2664: First name terms

The unclued lights, two of which accommodate two theme words, can be sorted into four trios of related words, each forming a reducing chain of 6, 5 and 4 letters. Across 11    Disentangle one French composer (7) 14    Department having some bargain dresses (5) 16    Annoying children – crazy right through (5) 19    Surfer returned

2661: Spectrum

The unclued lights, four of two words, two individually or six pairs bear a common feature. One of the words does double duty, and another appears in two forms. Ignore three accents in the completed grid.         Across    1    Criminal having cheese biscuit that’s not bad (4-7)    7    Found in cage in tribunal

2658: Yackety-yack

The unclued lights (one of three words) are of a kind and can be verified in Brewer, whose spelling is used.         Across    1    Small horn from moulding left indoors (8)    6    Love being in a home on the water (6) 11    Vauxhall model almost off course (5) 13    Cooked lamb, say, is

2655: Primacy

The unclued lights (one of two words) are of a recent kind. Across 10    Late bishop, terribly welcoming (10) 13    Farah off with English – that’s dull (8) 16    Confiscate trawler catching small fish (5) 17    Nick caught with grass in school (7) 18    Could be Turkish transport (7) 20    Poirot found by small transport

2652: A and M

The unclued Across lights are of a kind, as are the related unclued Down lights. The yellow and red squares, when read in order row by row, confirm the theme.         Across    1    Feel rip-off by stewards providing obligatory features on board (4,10) 11    Section of grammar review of Aeneid (three chapters) (9)

2649: Shut up shop

The unclued lights (three pairs and two individually and two of which are of two words) are now of a kind.         Across    1    Spice rack item revealed by horse and page (3,4) 11    Plenty of space, we’re told, for nursing with a head cold (6) 12    Deserts featuring brown palms (7) 14    Nasty

2646 : Too many (In memoriam)

The unclued lights (two of two words) comprise two celebrity pairs which are represented by a singleton, two pairs (one ‘In memoriam’) and a trio of lights . Across 1    Slices top of sausage in front of dogs (5) 4    Traffic police with amphetamine found by small wood, reportedly (5,4) 9    City’s main Mr Big

2643: Word-building

The unclued lights may be arranged to form a chain of words from three to eleven letters in length, each one being an anagram of its predecessor and one additional letter. One of these lights is hyphened. Elsewhere ignore an acute accent. Across 1    Radio show for impressionists no longer in the belfry (4,7) 11    Singer

2640: Double entry

The 12 six-letter unclued lights bear a common feature, different in each case, but ignore one hyphen.         Across    1    Put up a hammock for son with Heather (5)    4    One lies drunk after attempt to restore equilibrium (9)    9    After seven days, say, shall journalist be wimpish? (4-6) 11    Muse was,

2637: Born to sing

The unclued lights (one of two words, and the remainder when paired correctly) are of a kind, verifiable in Brewer. Ignore two apostrophes. Across 7    Scottish seagull’s gullet (3) 13    Pull back leading troops president recalled (7) 15    Chocolate powder run over in taxi (5) 16    Overwhelmed, Laura was hampered a bit (5) 17    Reporters on

2634: Word chain

The eight six-letter unclued lights half-overlap each other and so yield a complete word chain beginning with any one of them.         Across    1    Complex U-turn before end of lane. Wrong! (6)    7    That woman’s returning remains of make-over (6) 11    Boss has to grovel for LA brawn (4,6) 13    Old manuscript containing

2631:Nine capitalists

The unclued lights are of a kind, verifiable in Brewer with the help of the red squares which must be read in order row by row. Ignore one apostrophe and an acute accent, elsewhere. Across 9    Terrible President out on a limb at heart, troubled (10) 14    Courier company raises its charges (3) 16    Make

2628: Customary taxes

The unclued lights (one hyphened and plural, and another in the past tense) are of a kind, all verifiable as such in Chambers, most of them on a specific page.         Across    1    One son half-naked, at first, during old broadcast (12) 10    Bird losing head and part of foot (4) 12    Series of files

2625: Playtime

The unclued lights (one of two words) and four others clued without their thematic definition are of a kind. Across 1    Two little boys tapped their heads (6)7    Birettas seldom reveal this tuft (6)13    US challenge to foil and dismiss at the wicket (5)14    Material from The Spectator, London (5)17    Salary and gratuity, collected by

2622: Local call

The unclued lights (six of two words and one of three words), one pair or individually, are of a kind, verifiable in Brewer. Ignore one apostrophe.         Across    1    Declare nothing will stop crime, causing disgust (8)    6    Attack, losing head in drinking bout (6) 11    Objects to intellects (5) 13    Young

2619: All Grieg to me

The unclued lights, (four of two words), when arranged correctly, yield a famous TV quotation. One word does double duty; ignore an apostrophe too.         Across    4    Oblige to provide lodgings? (11) 11    Spanish food of peas cooked with everybody inside (7) 14    Gave a present that’s not about to be old-fashioned (5) 19   

2617: Enzed scorers

The 12 thematic unclued lights form the second half of an alphabetical list, one solution finally and another first and last. Across  4    Kitty stewed apricots as single snack (6,5) 11    Saw English animals (7) 13    Around Tyneside Freddie New established new credentials (9) 21    Forty winks before beginning to exercise back of neck (4)