Some of my fave words

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Across
  1. 3. Lethargic, comatose (6)
  2. 5. Round, chubby (5)
  3. 7. To switch a button from one state to another (6)
  4. 10. Totally destroy (10)
  5. 13. Wriggle, writhe (6)
  6. 14. Suffocate (10)
  7. 17. Seep (4)
  8. 18. Element with symbol W on period table (8)
  9. 19. Scornful, scathing (9)
  10. 21. Green (with vegetation) (7)
  11. 22. Defrost (4)
Down
  1. 1. Mythical creature known to give riddles (6)
  2. 2. (Of an animal) Most active at dawn or dusk (11)
  3. 4. Mineral consisting of silica (6)
  4. 5. Tendency, disposition (10)
  5. 6. Frown, glare (5)
  6. 8. One of my fave animals, like a zebra crossed with a giraffe(5)
  7. 9. (Of smoke or steam) rippling outward (9)
  8. 11. (Of greenery) Growing abundantly (4)
  9. 12. Implicitly understood (5)
  10. 15. A straight line that touches (but does not cross) a curve (7)
  11. 16. Intensely passionate (7)
  12. 20. Treat oneself to a luxury (7)