Supp-ooky Puzzle! (Get it? Support? Spooky? Sorry...)

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Across
  1. 3. You might want to keep this classic Halloween monster "under wraps", just to be safe.
  2. 4. Children in costume may say this at your door, hoping for some delicious candy.
  3. 5. This name refers to the scientist, not the monster.
  4. 9. A household item you might use to store candy, instead of a bucket or basket.
  5. 10. You can make one by carving a turnip (hyphenated).
  6. 13. Bats use this unique skill to hunt and to navigate their surroundings.
  7. 15. A famously witchy location. Also the name of a famous black cat.
  8. 17. A monstrous, Gothic waterspout or fountain that prevents rainwater from collecting on roofs.
  9. 20. A witch's faithful animal companion; often a black cat.
  10. 21. Like it or not, you have one of these inside of you! *gasp* It helps to give your body shape.
  11. 22. A colorful treat that you either love or hate (there is reportedly no in between).
Down
  1. 1. Like many old, abandoned houses.
  2. 2. Often, the personification of Death itself.
  3. 6. An extra fuzzy spider.
  4. 7. The Headless Horseman haunts this locale.
  5. 8. Halloween, to the religious.
  6. 9. A round, orange squash, perfect for carving.
  7. 11. Every ghost's favorite word?
  8. 12. By the light of the full moon, someone who has been bitten by this monster will become one themselves.
  9. 14. You might wear this on Halloween (or every day, nowadays).
  10. 16. They feed on the vital essence of living creatures.
  11. 18. The Celtic festival that historians believe inspired the modern Halloween.
  12. 19. A zombie's birthplace?