"R" puzzle

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Across
  1. 3. umpire
  2. 4. keeper of national park
  3. 5. quick
  4. 7. rest in peace
  5. 8. actually existing, genuine
  6. 9. process of chemical change
  7. 13. nuclear energy has this
  8. 14. black tasmanian crow
  9. 15. back part of anything
  10. 16. arch of colours in sky
  11. 17. repeating something
Down
  1. 1. taking up information from a book
  2. 2. school gives you one of these
  3. 4. red berry
  4. 6. small mouse-like rodent
  5. 9. what every car owner must pay
  6. 10. santa's animal
  7. 11. fatal disease spread by dogs
  8. 12. done without conscious choice
  9. 17. other word for invoice