CLUE: Add 1 to Reveal the 6-Letter Password

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Across
  1. 1. Bruce Willis might argue that this is a Christmas movie
  2. 7. Mariah Carey’s Christmas wish, in one word
  3. 9. Nonsensical insult from the movie Elf
  4. 10. Department store where a certain Miracle occurs
  5. 11. A horned, half-goat, half-demon figure from Central European folklore who punishes naughty children during Christmas
  6. 13. Specific brand of Ralphie Parker’s carbine-action two-hundred-shot range model air rifle
  7. 14. Bing Crosby classic: “White _______”
  8. 15. The beverage Clark Griswold chugs from a moose mug
  9. 16. Borough where the “Elf” mailroom dance happens
  10. 17. Hermey the Elf’s dream occupation in Rudolph the Red-Nosed Reindeer
Down
  1. 2. Eponymous “specimen” in a longitudinal meteorological case study noted for an anomalous photoluminescent nasal appendage under low‑visibility, high‑precipitation conditions.
  2. 3. Tom Hanks plans to take this choo-choo to the North Pole
  3. 4. His famous first line is a simple “Happy Birthday!”
  4. 5. Lone resident of Mount Crumpit
  5. 6. Michael Caine sees 5 of these in The Muppet Christmas Carol - 1 additional Marley brother than Dickens’ original
  6. 8. Kevin’s home city in the original Home Alone
  7. 12. Flower indigenous to mexico but synonymous with christmas floral displays