5. Admit prisoner's gripping iron pole

9. Regularly retread historical events

10. Champion in leaderless competition

11. Opposite over adjacent in 29a

12. Throw ending of game before liar detailed bloomer

13. Chase badge

15. Travel to work, entertaining at four, applies to only two of the operator

18/19/24. Crossed out huge problem solved with topological proof by Cartan

21. Reasonable to be expressable as a fraction

23. Player's boot is explosive

25. Cry for help with first signs of stress

27. Old lady retired in the morning

29. Upset about heat, disheartened in outfit - it's 90 degrees!

30. Post-date 37

31. Makes genes and mutates

32. Moon originally is outlandish

34. Article about half of gnat

35. Rat accrues nuts

38. Flyer sent back bill

40. Short replica policeman

41. Neck muscle has three different lengths?

42. Best decide, admitting hesitation

1. Function on water, head off over river

2. Upbringing, for example, a time of your life

3. Abstainer drinks for all to see to express disapproval

4. Suspect men are to take a new identity

5. Cradle cruel curse, regularly ignored mathematical discipline

6. Tip crate over

7. Feels hungry for shell fish

8. Pukes violently, accepting that endless revolution

14. Glass initially holds spirits

15. Scored unorthodox beliefs

16. A broken leg support using letters for numbers

17. Movement in groin, decreasing perhaps?

20. Deviation in naive car crash

21. Pours drinking measure of what's left over

22. Something charged, number after 32

24. See 18 Across

26. Inexpensive rubbish work turns up after problematic ache

28. Trouble a party

29. Second protein encoding material, after 31?

33. Associate colour system for TV

36. Bite wound

37. Worth a few, we hear

38. Thanks volunteers

39. Regularly ignored, able to exist