serendipity

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Across
  1. 3. characterized by levity of attitude and love of joking
  2. 5. indicating or involving life or living organisms
  3. 6. a medicinal extract in a solution of alcohol
  4. 7. overproduction of thyroid hormone, causing nervousness, insomnia, sweating, palpitation, and sensitivity to heat,
  5. 11. foresight, discernment, or keen perception; ability to make good judgments
  6. 12. a swelling of the thyroid gland,by under- or overproduction of hormone by the gland
  7. 13. a class, group, etc., with common characteristics
Down
  1. 1. extracted from cinchona bark, the salts of which are used as a tonic in malaria therapy
  2. 2. the formation of complex compounds from simple substances by living organisms
  3. 4. a person of great and varied learning
  4. 8. able to be steered or directed
  5. 9. the faculty of making fortunate discoveries by accident
  6. 10. not genuine; pretended