End-of-Summer Crossword Puzzle

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Across
  1. 1. blue and orange star
  2. 4. shy
  3. 5. high-energy French dance
  4. 8. French pancake
  5. 9. Christmas flower
  6. 10. baking soda
  7. 12. right under the roof
  8. 17. confusing, hard problem
  9. 18. rex
Down
  1. 2. coloured part of your eye
  2. 3. soft, muddy land
  3. 4. plastic container for leftovers
  4. 6. gem with the power of electricity
  5. 7. nervous and pumped up
  6. 11. series of three
  7. 13. Chinese currency
  8. 14. makes an awful sound when you .... chairs on the floor
  9. 15. purple gemstone
  10. 16. soft mat on the floor