Do you know these words?

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Across
  1. 3. not working correctly or not the expected outcome
  2. 4. to be a good example of; to show something clearly
  3. 5. very thin, possibly because of illness
  4. 8. when the opposite is also true
  5. 10. a set of ideas or beliefs; a governmental policy
  6. 13. to celebrate or remember
  7. 14. to blend in with the surrounding culture; to fully understand something
  8. 16. based on facts or reason, not on emotions or feelings
Down
  1. 1. powerful, strong; difficult to deal with
  2. 2. clearly expressed and understood OR to express something clearly
  3. 6. a person or thing that makes a situation difficult
  4. 7. power or right to make decisions or enforce laws in a specific area
  5. 9. very important
  6. 11. covered in decorations; fancy
  7. 12. possible to do
  8. 15. sudden and strong feeling of emotions