Complete
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6 8 10 13 16 19 21 7 1 18 17 2 9 15 14 3 12 20 11 4 5
  1. 1 a Properties of a space that determine how sound is transmitted (9)
  2. 8 a Pull up (5)
  3. 9 a Hot wind blowing from North Africa to southern Europe (7)
  4. 10 a Like Janus? (3-5)
  5. 11 a Having knowledge of (2,2)
  6. 13 a Lamb or veal chop from behind the neck (6)
  7. 14 a Work (6)
  8. 16 a German car manufacturer, founded 1862 (4)
  9. 17 a German motorway (8)
  10. 19 a Slippery surface for recreation (3,4)
  11. 20 a Fine net used in veils (5)
  12. 21 a Make someone understand (3,6)
  13. 1 d Animal with long tongue that collects insects (8)
  14. 2 d Thrown out (6)
  15. 3 d Agricultural worker bound by the feudal system (4)
  16. 4 d Miserable and beyond cheering up (12)
  17. 5 d Fashionable upper-class young woman (6,6)
  18. 6 d Anything happening? — hawking coots (anag) (5,7)
  19. 7 d Old time corporal punishment (3,2,3,4)
  20. 12 d Old time French dances (8)
  21. 15 d Bird — bananas (6)
  22. 18 d Thin plate (4)

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