A little experiment

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Across
  1. 3. additive word
  2. 5. tired
  3. 9. sometimes hurts but always right
  4. 10. well organized
  5. 11. admirable energy
  6. 12. sight out of mind
  7. 14. a transfer of information one to another
  8. 16. sparklingly amazed
  9. 17. worth noticing
Down
  1. 1. muscular center
  2. 2. Feline internet sensation
  3. 4. assist in recovery
  4. 6. Sentinel author
  5. 7. an additional helping of ordinary
  6. 8. early dog
  7. 11. there is no substitute
  8. 12. home of the nicest people
  9. 13. a view of the mind
  10. 15. St Vlad Chronicler