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. 1a Social networking website (8)
  2. 5a Window framework (4)
  3. 9a Fascinating woman (but dangerous to know) (5)
  4. 10a Christmas fuel (4,3)
  5. 11a Till (4,8)
  6. 13a Chinese martial art (4,2)
  7. 14a Motion picture awards (6)
  8. 17a Action is pure (anag) — dogged (12)
  9. 20a As old as the hills (7)
  10. 21a Tiny amounts (5)
  11. 22a Scottish church (4)
  12. 23a Persistently annoyed (8)
  13. 1d Palaver (4)
  14. 2d Incontrovertible (7)
  15. 3d Fist (slang) (5,2,5)
  16. 4d Gas making up over 20% of Earth's atmosphere (6)
  17. 6d Give out (5)
  18. 7d Building with many storeys (4-4)
  19. 8d Unobstructed progress (5,7)
  20. 12d Type of tuna (8)
  21. 15d Jenny ___ , star of The Railway Children (7)
  22. 16d City in Lombardy — am a nut (anag) (6)
  23. 18d Come again? (5)
  24. 19d Exploited (4)