Complete
00:00:00
1 9 12 13 17 20 22 11 2 18 3 23 4 10 16 14 8 21 5 6 15 7 19
  1. 1 a Not talkative (8)
  2. 5 a Moment (informal) (4)
  3. 9 a Powder from ground pods used as a chocolate substitute (5)
  4. 10 a Calumny (7)
  5. 11 a Spa treatment? (12)
  6. 13 a Adjust an instrument or vehicle (4,2)
  7. 14 a No matter who (6)
  8. 17 a Roundish male (anag) — not eating properly (12)
  9. 20 a In the vanguard (7)
  10. 21 a Subject to (5)
  11. 22 a Killed — a large number (4)
  12. 23 a Closest possible finish (4,4)
  13. 1 d Blood-sucking member of the spider family (4)
  14. 2 d Palaver (5-2)
  15. 3 d Illness that killed John Keats and George Orwell (12)
  16. 4 d Puts instruments and dials back to zero (6)
  17. 6 d A Passage to ___ , 1924 EM Forster novel (5)
  18. 7 d Boat operators (8)
  19. 8 d Unharmed (4,3,5)
  20. 12 d Spur to action (8)
  21. 15 d Past the stipulated time (7)
  22. 16 d Outdoor shoe with a perforated pattern in the leather (6)
  23. 18 d Permission (5)
  24. 19 d Badly-behaved youngster (4)

Across

Down