Just a Puzzle

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Across
  1. 2. Tallest man alive.
  2. 4. A famous Jackson.
  3. 6. Smiling as he holds your gf in the cold.
  4. 9. Zombie.
  5. 10. A spider.
Down
  1. 1. Shaun!
  2. 3. That lizard.
  3. 5. World Serpent.
  4. 7. 18.
  5. 8. Ghost? I know who to call.