Fifi's Skiing Crossword (with the odd Rivona word thrown in)

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Across
  1. 4. will hopefully be helpful (10)
  2. 6. necessary winter clothing (8)
  3. 7. heated liquid container (3,5,6)
  4. 10. post-ski party (5-3)
  5. 11. town we first met (9)
  6. 12. don't stand under these (7)
  7. 14. you've probably not taken this with you (6)
  8. 15. the colour to avoid (5)
  9. 19. where two became one (5)
  10. 21. common skiing attire (10)
  11. 22. ouch marks (7)
Down
  1. 1. shakey shakey makey makey... (6,6)
  2. 2. a popular airport establishment (12)
  3. 3. your roommate (6,4)
  4. 5. alternative (more fun?) snow activity (11)
  5. 8. twilight average (7,8)
  6. 9. darling (alternative) (7)
  7. 13. used for snaffles (7,4)
  8. 16. one of our favourite things to do (10)
  9. 17. winter creature (4,7)
  10. 18. i stun moan (anag) (9)
  11. 20. ski slope (5)