Complete
00:00:00
7 14 19 1 9 12 21 2 15 3 11 20 10 4 18 16 5 8 13 6 17
  1. 1a Once popular child's toy — favourite topic (5,5)
  2. 7a Circumspection — girl's name (8)
  3. 8a Old-fashioned pronoun (4)
  4. 9a Spanker or spinnaker, for example (4)
  5. 10a Stupid (7)
  6. 12a Portuguese explorer d. 1524 (5,2,4)
  7. 14a Nimbleness (7)
  8. 16a Leave out (4)
  9. 19a Hit with the head (4)
  10. 20a The Prairie State (8)
  11. 21a Posh (5-5)
  12. 1d Parsley, sage, rosemary and thyme (5)
  13. 2d Pals (7)
  14. 3d Tug (4)
  15. 4d Remain too long (8)
  16. 5d Prince of Darkness (5)
  17. 6d Part of the eye (6)
  18. 11d Slow-moving reptile (8)
  19. 12d Energy (6)
  20. 13d Pungent gas (7)
  21. 15d Illuminated (3,2)
  22. 17d Coin-tossing call (5)
  23. 18d Group of countries (4)