Autumn's puzzle

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Across
  1. 1. open
  2. 4. practical
  3. 9. heavy
  4. 10. fragile
  5. 11. useful
  6. 13. older
  7. 16. better
  8. 17. modern
  9. 19. simple,plain
Down
  1. 2. round
  2. 3. as...as
  3. 5. noisy
  4. 6. less...than
  5. 7. square
  6. 8. old
  7. 12. light,lightweight
  8. 14. a rectangle is
  9. 15. worse
  10. 18. more...than