Decades

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Across
  1. 7. for the best at something GOAT
  2. 8. dome
  3. 9. up the rug
  4. 10. joy
  5. 15. knees
  6. 17. on the ritz
  7. 18. scram
  8. 20. totsy
  9. 21. sandwich
Down
  1. 1. joint
  2. 2. tire
  3. 3. rubber
  4. 4. water
  5. 5. cat
  6. 6. a clue
  7. 9. pajamas
  8. 11. take five
  9. 12. two shoes
  10. 13. it under your hat
  11. 14. on
  12. 16. the roses
  13. 19. cuff