4  A Royal Navy cable at sea - it might get stuck to the bottom? (8)

10 Deadly wave on vacation terrifies a friend across the channel (7)

11 Dieter emerges from Himmler's leaderless organisation (7)

12 Dress for the South of France (4)

13 Takes another look at prices sent abroad (10)

15 Apple gets money back (6)

16 American composer is short with lightweight French composer (7)

20 Hated to work as a midwife on reflection (7)

21 Key opponents meet on headland (6)

24 Keep afloat in raw treated waste (5,5)

26 Cardinal favouring University being admitted (4)

28 Written testimonial of mine inside each pub (7)

29 Reckoned everyone will be drawn outside (7)

30 Exchange rate is guaranteed with gold (8)

31 Rents with comfort in outskirts of Leeds (6)

 1  High flier to sign seal of approval (4,4)

 2  A rock and roll reversal revealing riches (9)

 3  State intelligence covering artillery (4)

 5  A social flyer posted internally for missing person (8)

 6  Arrest East European for digital cover-up (4,6)

 7  Funny award given to international opener in cricket club (5)

 8  Officious sergeant holds up departure (6)

 9/18        To hamper, perhaps, or to take arms against a sea of trouble? (5,8)

14 Where dishonest landlords might be found? (6,4)

17 Essentially moral politicians seen at places of worship (9)

18 See 9

19 She fusses around newly-wed from the Western Isles (8)

22 Student leaves letters scattered by the road (6)

23 Zoom meeting with heartless Tory in the dock (5)

25 The best low calorie drug? (5)

27 Down right offensive (4)