extension crossword

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Across
  1. 2. send circulars to
  2. 5. add a suffix region
  3. 7. to finish something or to move up to a higher level in a hobby, school, club etc
  4. 8. not legal
  5. 9. one's nation of origin
  6. 11. something old and noteworthy
  7. 12. the opposite to illegal
  8. 14. a specified income payable at stated intervals for a fixed or a contingent period
  9. 15. decorated with or dipicting flower
Down
  1. 1. to change (a system, number, etc) to the decimal system
  2. 3. an efficient form of power
  3. 4. dinosaurs lived in the era
  4. 6. everlasting life
  5. 10. once in a while
  6. 13. one who treats teeth