-ian, -ist, -or, and -er suffixes

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Across
  1. 3. a person who has a particular regard for someone or something
  2. 7. a person captured and kept confined by an enemy or criminal
  3. 8. a person who believes in the truth or existence of something
  4. 10. a competitor or team in the final or finals of a competition
  5. 12. someone who creates
  6. 13. a person who concentrates primarily on a particular subject or activity
  7. 15. an expert in or student of history
  8. 16. a person who delivers a speech
  9. 17. a singer, typically one who regularly performs with a jazz or pop group
Down
  1. 1. a person who defends someone or something
  2. 2. a person not in the armed services or the police force
  3. 4. a doctor for animals
  4. 5. a person who is traveling or often travels
  5. 6. a person who creates paintings or drawings as a profession or hobby
  6. 9. a person visiting someone or somewhere, especially socially or as a tourist
  7. 11. a person who invented a particular process or device
  8. 13. someone who studies science
  9. 14. the remainder of a group of people or things