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 Woody shrub with large, sometimes globe-shaped, flower heads (9)
  2. 8 a How letter writers often start to sign off (5)
  3. 9 a Vegetable product used in food manufacturing, beauty products, and as biofuel. (4,3)
  4. 10 a Hint (8)
  5. 11 a Mobile phone communication (4)
  6. 13 a Places one often visits (6)
  7. 14 a Strong drink (6)
  8. 16 a Geekish sort (4)
  9. 17 a Weakness (4,4)
  10. 19 a Refuge (7)
  11. 20 a Proportion (5)
  12. 21 a One has a serious problem with 14 (9)
  13. 1 d Do this and you're lost! (8)
  14. 2 d Rely (upon) (6)
  15. 3 d In a competent manner (4)
  16. 4 d Punch and Judy, say (5,7)
  17. 5 d Make a mountain out of a molehill, for instance — I tear into all (anag) (12)
  18. 6 d Obsessive anxiety about one's heath (12)
  19. 7 d Involving complex rules and processes (12)
  20. 12 d Significant (8)
  21. 15 d When cold, people often sleep in such a position (6)
  22. 18 d Affirmative (informal) (4)

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