2693: Summer dresses

Unclued lights (two of two words) refer to works in the same genre by a closely associated pair.

Across

1 In store, old copper pipe (8)

7 Moves swiftly, caught in foam (5)

12    Woman claimed win after slimming (6)

16    Evidence of wound almost frightening (4)

17    Scots fabric, affectedly pretty line (5)

18    Fool punches porky girl (6)

22    A little pressure from jemmy dumping weight on motorway (8)

23    Lecture now held regularly in Berlin, certainly (6)

24    Why is match cancelled? Another drink! (6)

26    Piece badly spoilt (6)

28    Speck in slabs of glass that are blown (3-5)

34    Being negligent, fail again? (6)

35    About to secure good measure for the Chinese (5)

36    Briefly clip African tree (4)

38    Pick out one, then three consecutive notes (7)

39    Short queue inside senior officer’s hospital (6)

41    Derogatory in arrogance about navy (5)

42    Reminder to stock rice drink (8)

Down

1 Fit, appear back in school yard (6)

2 Fairly big receptacle (4)

3 Ready for Will to engage one minister (6)

4 I agree with a firm to take up playwright (6)

5 Mark strangely merciful in complex case (10)

6 Regularly taking one cereal, endlessly dreamy (6)

7 Stratagems involving fuss with beer gut (11)

8 Rail operatives picked up in major station (5)

9 Partners hand-holding in the trees (4,5)

19    In depravity, screen out going green (10)

20    Getting clean pardon? Not so (8)

21    Horse-cloth as trick draped over a Trojan hero (9)

25    Coxes welcome one that asks to join (7)

29    Position initially as lecturer gets a sort of vote (6)

30    Spinach substitute gives men pain (6)

31    Messages that may bring a smile (6)

33    Unrolled umbrella, taking coat out without being invited (5)

37    Small chaffinch in perfect condition (4)

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A first prize of a £30 John Lewis voucher and two runners-up prizes of £20 vouchers for the first correct solutions opened on  24 March. Please scan or photograph entries and email them (including the crossword number in the subject field) to crosswords@spectator.co.uk,