Halloween

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Across
  1. 3. Casper, for example
  2. 5. Cave dwellers
  3. 7. Dracula, e.g.
  4. 8. Grave marker
  5. 11. Pointy hat wearer
  6. 13. Witch's pot
  7. 14. Jack-o'-lantern base
  8. 16. Scary shout
  9. 17. Halloween attire
Down
  1. 1. Nocturnal flyer
  2. 2. Undead walker
  3. 4. Eight-legged fright
  4. 6. Witch's ride
  5. 9. Bony framework
  6. 10. Graveyard creature
  7. 11. Full moon changer
  8. 12. Disguise for Halloween
  9. 15. Witch's brew
  10. 17. Sweet treats
  11. 18. Wrapped monster