Ist words

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Across
  1. 2. An expert in economics
  2. 6. A person who studies the way of the brain
  3. 7. Character in a film
  4. 8. A player of a musical instrument with strings
Down
  1. 1. A person who rides motorcycles
  2. 3. An expert in rocks
  3. 4. A person who studies science
  4. 5. A person who studies hearing