Complete
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8 9 11 14 18 22 24 1 2 19 3 13 12 4 10 17 15 5 21 23 20 6 16 7
  1. 1 a Illness may be (anag) — a means of mass production (8,4)
  2. 9 a Mexican snack (5)
  3. 10 a The soul of wit, according to Shakespeare (7)
  4. 11 a One may be common or proper (4)
  5. 12 a A passport photo, say (8)
  6. 14 a Preserve human remains (6)
  7. 15 a Involve (6)
  8. 18 a Ultimate (8)
  9. 20 a Boxing arena (4)
  10. 22 a Confine (7)
  11. 23 a Happiness (5)
  12. 24 a Downside (12)
  13. 2 d Knuckle under (7)
  14. 3 d Person who has won all four Emmy, Grammy, Oscar and Tony awards (4)
  15. 4 d Moved up and down repeatedly (6)
  16. 5 d Admitting defeat (8)
  17. 6 d Stew or coffee? (5)
  18. 7 d Howard Carter, say — Google typist (anag) (12)
  19. 8 d Bored (12)
  20. 13 d Inopportune (3-5)
  21. 16 d Unchanging (7)
  22. 17 d Flowering plant of the aster family (6)
  23. 19 d George Eliot's actual surname (5)
  24. 21 d Share a boundary (4)

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