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    Complaint made by one head about pupils (7)

21    Smoke in the Tube (4)

23    Whirlwind Frank making Tony hop (7)

24    Duck having twitch of the ear (4)

25    Yes, indeed.