Hello, Deer - Try This Holidaze Puzzle! It's Antler-ific!

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Across
  1. 2. Event lasting 8 days
  2. 4. Sung by groups
  3. 10. Toy of German descent
  4. 13. Cane of your existence
  5. 14. German Christmas Tree
  6. 17. Favorite Holiday Beverage
  7. 18. Hang stockings here
  8. 19. Norse winter
Down
  1. 1. Bing Crosby fame flick
  2. 3. Mystery gift game
  3. 5. Month before Christmas
  4. 6. Wood or gas
  5. 7. Decorates trees
  6. 8. For the naughty
  7. 9. Seasonal drink (w/or w/o rum)
  8. 11. "Heaven" on Earth
  9. 12. Alt Festival
  10. 13. Exchange these
  11. 15. Invisible danger on winter roads
  12. 16. Martha's birthplace