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 Scram! (2,4,4)
  2. 7a Herb — arrogant (anag) (8)
  3. 8a Bantu language of south-eastern Africa (4)
  4. 9a Exactly right (2,1,1)
  5. 10a One who sings like Bing? (7)
  6. 12a Container buried with items to be discovered in the far future (4,7)
  7. 14a Old pseudoscience hoping to turn base metals into gold (7)
  8. 16a Uterus (4)
  9. 19a Go (4)
  10. 20a Land turtle (8)
  11. 21a Stylised picture found in ancient Egyptian writings (10)
  12. 1d Abstract visual style for the 1960s, giving the illusion of movement (2,3)
  13. 2d Either end of a spar on a square-rigger's mast (7)
  14. 3d Impel (4)
  15. 4d Penniless (8)
  16. 5d Toy wind instrument that buzzes (5)
  17. 6d Swindle (6)
  18. 11d Sword with curved blade (8)
  19. 12d Body of Jewish law (6)
  20. 13d Study of alien craft (7)
  21. 15d Vietnamese capital (5)
  22. 17d Dutch painter, Hieronymus, d. 1516 (5)
  23. 18d Amphibious jumper (4)