Writer's Exchange Wednesday

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Across
  1. 4. platform for pretenders and ghosts
  2. 5. Alexandra
  3. 7. very, very old rhinocerous?
  4. 10. otherwise known as "The Bark Knight"
  5. 11. QA name that might be the change in your pocket
  6. 13. third planet from the sun
  7. 14. erupts with hot lava
Down
  1. 1. buried in a box, might contain gold
  2. 2. she might break your heart
  3. 3. mushroom kingdom hero
  4. 6. ocean snack
  5. 8. tiny turtle in pokemon world
  6. 9. Mario's companion
  7. 12. words of a song