ACROSS

1. For nuts with 10 dinner (7)

5. Back up dealing first dent in 10 dessert (7)

9. Superstar maiden gutted to receive angel's first word (5)

10. Star chimp's lost first punch in late December (9)

11. Up for 10? Speech at 12 (10)

13. Three directions not used (3)

14. Keep notice, not first in protecting leg joint (4,3)

16. Perhaps stout as a result of this drink? (4)

20. Active place of irritation if plural? (4)

21. Revolutionary Noel, with revolutionary tiered lines of troops (7)

24. Date's short -- back a bit! (3)

25. The fat man for 10 (5,5)

28. New ASIO men on radio for 10 (5,4)

29. Buddy for 10? (5)

30. Now for 10! (7)

31. Worker on 10 owed pound of flesh (7)

DOWN

1. Arrive on empty day? It's meant to be funny. (6)

2. Notice sin and helpful comments (6)

3. Family of short cattle (3)

4. Cuter tangled second hairdo attempt (5)

5. Average child has years in vicar's house (9)

6. Dishevelled start for 5ac bowl (4)

7. "I'm the Fawlty Towers' waiter" who came at 10 (8)

8. Sleepy perhaps, sag back at first for mini-Neptune? (3,5)

12. O Call! (4)

15. Tangled haircuts 'e perhaps celebrated at church at 10? (9)

17. Use to see where your snaps were, using difficult math on poop (5,3)

18. Proof Germany is in show (8)

19. Overheard discussion of neck ornament (4)

22. Everyone in feature, not hotel, ring home (4,2)

23. Ultimate reason (1,3,2)

26. Libretto scanned in Opera (5)

27. Give up offspring, we hear? (4)

29. Out of 1ac, worn at 10 (3)