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 Determination (9)
  2. 8a Gardener's growing pest (4)
  3. 9a Monster: part bull, part man (8)
  4. 10a Gorgeous person (or thing) (6)
  5. 11a Courage (informal) (6)
  6. 13a Laugh loudly (6)
  7. 15a Feeling a little sick (6)
  8. 16a Down which things run away or get lost? (8)
  9. 18a Gardener's slimy pest (4)
  10. 19a Sound made to express contempt (informal) (9)
  11. 1d Sail standing on a board (8)
  12. 2d (Of a voice) affectedly mellow (6)
  13. 3d Mix socially with one's betters (6)
  14. 4d Smallest denomination US coin (4)
  15. 6d South American country (9)
  16. 7d Absurdly exaggerated parody (9)
  17. 12d Accumulated wealth (in money, jewels etc) (8)
  18. 14d Cries of joy (6)
  19. 15d French-speaking North American city (6)
  20. 17d Intended aim (4)