The happiness puzzle!

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Across
  1. 1. the payment of a salary, debt, etc.
  2. 3. the use of physical or mental power
  3. 5. pertaiting to or involving emotion or the emotions
  4. 6. a small metal instrument specially cut to fit into a lock.
  5. 7. careful patient study of a subject in order to discover or revise facts, theories, principles, etc.
  6. 10. in a rough or violent manner.
  7. 12. a chemical used in medicines for the treatment of disease or to improve phisical or mental well-being
  8. 13. Something that is removed by skimming
  9. 14. done, made, brought about, or perfomed through or by ones will by they own free choice
Down
  1. 1. maybe, possibly
  2. 2. confidence or trust in a person or thing
  3. 4. a recall to the mind
  4. 8. pledged to be married.
  5. 9. the reflexive form of the pronoun they, used when the object of a verb or preposition names the same noun as the subject
  6. 11. refers to the same person