Complete
00:00:00
8 10 13 16 6 5 19 1 17 2 9 14 3 11 15 4 12 18 7
  1. 5a A Yalta Conference attendee (9)
  2. 8a White Christmas requirement (4)
  3. 9a Geometric curve (8)
  4. 10a Greek god of the west wind (6)
  5. 11a Smear (6)
  6. 13a Bloom (6)
  7. 15a Necessary commodity in constant demand (6)
  8. 16a Endearing (8)
  9. 18a Moolah (informal) (4)
  10. 19a Fine (informal) (5-4)
  11. 1d Sturdy dog breed from northern China (4,4)
  12. 2d Fit for purpose (6)
  13. 3d Not monopolised (6)
  14. 4d Smooth-talking (4)
  15. 6d Entr'acte (9)
  16. 7d Innocent (9)
  17. 12d Historic region of north-west Europe, scene of prolonged battles in WWI (8)
  18. 14d Reprimand (6)
  19. 15d Quick (6)
  20. 17d Cause to run away (4)