compound words and inflected endings

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Across
  1. 4. a room in a house for children to play
  2. 5. a thin flat cake made of batter
  3. 7. a marine creature with 5 or more arms
  4. 11. a team game played with an oval ball
  5. 12. a hard ball used to play a game
  6. 13. a round glass bowl to keep a fish
Down
  1. 1. a small cake
  2. 2. a hotdog covered in cornmeal batter
  3. 3. more then one building for human habitation
  4. 6. several one piece garments that cover the body
  5. 8. a human figure created with snow
  6. 9. luminous points in the night sky
  7. 10. more then one vehicle that glides over snow or ice
  8. 12. multiple concave vessels