Complete
00:00:00
7 9 16 17 20 22 1 12 13 2 18 3 10 23 8 11 21 4 14 19 5 15 6
  1. 1a Upper arm muscle (6)
  2. 4a Recorded electronically (5)
  3. 7a ___ Benedetti, Scottish-Italian violinist, b. 1987 (6)
  4. 8a Out and about (6)
  5. 9a Sign that an editor's had second thoughts? (4)
  6. 10a Speculate (8)
  7. 12a Way to get help (at a push)? (5,6)
  8. 17a Nautical shade? (4,4)
  9. 19a Spin round (4)
  10. 20a Kind - behaviour (6)
  11. 21a Kind of acid found in vinegar (6)
  12. 22a Source of lanolin (5)
  13. 23a With precision (6)
  14. 1d Congested (5-2)
  15. 2d Small piece of toasted or fried bread (7)
  16. 3d Concrete (9)
  17. 4d Prohibited (5)
  18. 5d Stipulated condition (7)
  19. 6d Cunning plans (6)
  20. 11d Individually list (9)
  21. 13d Amount paid before it's been earned (7)
  22. 14d Deluge (7)
  23. 15d Declare invalid (7)
  24. 16d Hostile feeling (6)
  25. 18d High-pitched electronic noise (5)