half a word puzzle: vocabulary practice

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Across
  1. 6. a play
  2. 8. the remainder
  3. 9. duty
  4. 15. special
  5. 16. an indicator
  6. 17. to sell
  7. 19. an element
  8. 20. a company
  9. 21. not visible
  10. 22. a business
Down
  1. 1. heavenly persons
  2. 2. a colour
  3. 3. a loan
  4. 4. a receipt
  5. 5. togethrness
  6. 6. a proposal
  7. 7. ecology
  8. 10. salary
  9. 11. working togethr
  10. 12. to arrest
  11. 13. a relationship
  12. 14. a plan
  13. 18. a basketball term