‘1A/36A/1D/4D’ (five words in total) is an extract from a song about the escape of 21D/15D (three words in total). Remaining unclued lights tell when and whence the escape occurred.

Across

9 Orderly really not tense (4)

11    Arab runs past the dark carbonate mineral (10)

12    Small flock nibbled rhubarb (4)

14    Certain proteins no longer in beer (nothing turns on it) (6)

16    Woman has money, gold and silver (5)

17    Message from Spain fellow heard (5)

20    Rhine in Germany is more vigorous (7)

21    Careless treatment of poor Glen shocks (7)

23    Maybe Grace Darling in junk heading for Eastbourne (7)

24    Shy grandmaster (5)

25    Bright like brass in Vilnius (5)

27    Pound note for Samson suggested by female? (4,3)

30    Snaps capturing nice sliced pieces of cake (7)

32    Fashionable fruit Oscar plucked is pottable (2,5)

37    Rectrix stripped and flexed straight muscles (5)

38    Barber in fashion less than kind (6)

39    Nymph to follow slavishly (4)

40    Japanese spa town greeting aguish Zulu I treated (10)

41    Large fish in Buckeye State dad caught (4)

42    Abused consorts left at an astronomical rate (5,8)

Down

2 Extreme insult rajah swallows (5)

3 Cowslip, whitish, I start to grow inside (6)

5 Young posho cut the rabble with a new dagger (7)

6 Trundles in classy cars (7)

7 Socialising baseball team Chinese dynasty hosts (6)

8 Resident doctor initially repaired parts of nerve cells (9)

10    Crude Bedouin shocked ten (not nine) (10)

13    Fish and a different fish rounding island (7)

18    Reddish-brown carrot tenor ate con brio (10)

19    Scruffy old women land wearing jumpers (4-4)

22    Chaps skinned kipper and crabs (7)

26    Some present Osaka as an Asian holiday resort (7)

28    Hankie Henry lost Rex spattered with much of mucous discharge (7)

29    Violent gangster nearly strangles no-good no-hoper down under (6)

33    Prenatal procedure I moan about (5)

34    Small bluebottle with 500 hairs on the hindlegs (5)

Download a printable version here.

A first prize of a £30 John Lewis voucher and two runners-up prizes of £20 vouchers for the first correct solutions opened on 27 April. Please scan or photograph entries and email them (including the crossword number in the subject field) to crosswords@spectator.co.uk, or post to: Crossword 2747, The Spectator, 22 Old Queen Street, London SW1H 9HP.