Merry Christmas, everyone...!

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Across
  1. 2. A song, usually religious, sung at Christmas
  2. 4. After a winter storm, children build this 'person'
  3. 7. Extra things that complete the ham, turkey or roast
  4. 9. A drink made with milk, spices and eggs
  5. 10. Santa's little helpers
  6. 11. A typical peppermint Christmas treat
  7. 12. You hang it on the tree
Down
  1. 1. A prickly green plant used for decoration
  2. 2. This is how Santa Claus gets into your house
  3. 3. The animals that pull Santa's vehicle
  4. 4. You hang it by the fireplace
  5. 5. A sweet treat served in slices with candied fruit
  6. 6. Santa's flying vehicle
  7. 8. A plant people kiss under at Christmas
  8. 9. Christmas ___ = the day/night before Christmas