Noun formation

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Across
  1. 3. a person who acts in a movie
  2. 5. a person who constructs buildings
  3. 6. a person who sings songs
  4. 7. a person who writes books
  5. 8. a person who cures people
Down
  1. 1. a person who makes inventions
  2. 2. a person who plays football
  3. 4. a person who works in a newspaper