Cryptic crossword

ACROSS 1. One of those nine tails for collision injury in car? (8)

5. It takes two to ‘go for a spin’ (6)

10. Wanders into a Cairo vessel (5)

11. Vastly hollow course van works out (9)

12. At eventide resolve knot in three ways (7)

13. A step in rigging takes sailor aback on the Nile perhaps (7) 14. The native boy is at me, or heads away (6)

16. Retaliation, for example: at no time will it return (7) 19. Manage to discern how to get by (4,3)

21. Lie in wait for the morning, Mr President? (6)

25. Leaves the post but enrols again? (7)

26. Take over woman of about 51 first (7)

28. Faithfulness of cast no different with chorus-leader in New York (9)

29. On the watch for the siren’s call (5)

30. Make choice when about fifty see non-u cut (6)

31. Piano numbers shortly put back by relation (8) DOWN 1. Experimental project creates labour with a retailer (8) 2. At home archdeacon upsets saint but makes up for it (7) 3. Look! How to catch a fool with a lariat! (5)

4. Corner-man for an instant (6)

6. The way the weather comes to pour is on song (9) 7. Sounding monotonous, grind no variations (7)

8. Roll-call shows us in school-time upset (6)

9. Supervise the bishop’s position? (7)

15. Full of go, it might be green to call one up (9)

17. Niggling loudly, got us to give voice (7)

18. Turnout of theatre on first night will be menacing (8) 20. Gunners need it to make SA learn different (7)

22. To be more frugal is vain (7)

23. Crocodile, in short, is American source of saffron (6) 24. Collect for each beam entered (6)

27. Come to hear of tragic king going North (5)