Each unclued lights include one letter three times. The wording of the preamble precludes ALLYLS (2D which would be the second plural) and IRITIC (an adjective). 29D can be either TANNIN or NANKIN.
First prize Graeme Davies, Farndon, Newark
Runners-up Stephen Saunders, Midford, Bath; Hugh Aplin, London SW19
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