Mystery Party Clue Puzzle

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Across
  1. 4. Muted colors
  2. 6. Dumbledore's school
  3. 9. Author of The Lord of the Rings
  4. 11. A magical phrase
  5. 12. The world's tallest mountain
  6. 13. A small chunk of gold
Down
  1. 1. The Titanic's bane
  2. 2. Fool's chocolate
  3. 3. The Loch Ness Monster
  4. 5. A rain shield
  5. 7. An Italian musical
  6. 8. A winged lizard
  7. 10. A mistake remover