Suffixes Puzzle

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Across
  1. 3. Full of excitement and happiness
  2. 6. A formal promise
  3. 7. To make something current
  4. 9. Having the qualities of being grand
  5. 12. The act of celebrating
  6. 14. Relating to the natural world or environment
  7. 16. The state of being happy
  8. 17. A person who studies the human mind
  9. 18. An expectation that good things will happen
Down
  1. 1. Without hope or optimism
  2. 2. A person who writes books
  3. 4. Able to be washed
  4. 5. The study of living organisms
  5. 8. A person who plays guitar professionally
  6. 10. A person who acts in plays or movies
  7. 11. The result of moving from one place to another
  8. 13. A position of leading a group or organization
  9. 15. Without fear