Vocabulary extension. Noun suffixes – er– or – ist

123456789101112
Across
  1. 4. guitarist
  2. 6. trainer
  3. 8. invention
  4. 9. builder
  5. 12. cleaner
Down
  1. 1. photographer
  2. 2. designer
  3. 3. artist
  4. 5. footballer
  5. 7. scientist
  6. 10. director
  7. 11. economist