Puzzle

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Across
  1. 9. (a statement or situation) less confused and more clearly comprehensible.
  2. 12. the addition of.
  3. 13. done, happening, or chosen without method or conscious decision.
  4. 15. discover or identify the presence or existence of.
  5. 17. to happen; unavoidable.
  6. 19. play for theater, radio, or television.
  7. 20. extreme force, degree, or strength.
Down
  1. 1. to the nucleus of an atom.
  2. 2. (especially of change or action) relating to or affecting the fundamental nature of something; far-reaching or thorough.
  3. 3. possibility or likelihood of some future event occurring.
  4. 4. over the place, position, or role of (someone or something).
  5. 5. distinct section of a piece of writing, usually dealing with a single theme and indicated by a new line, indentation, or numbering.
  6. 6. and make alterations to (written or printed matter).
  7. 7. person actively engaged in an art, discipline, or profession, especially medicine.
  8. 8. or control (a tool, mechanism, etc.), typically in a skillful manner.
  9. 10. to support or look after (someone)
  10. 11. back (a previous right, practice, custom, or situation); reinstate.
  11. 14. (something, especially something unwanted or unpleasant) to the smallest possible amount or degree.
  12. 16. publicly display (a work of art or item of interest) in an art gallery or museum or at a trade fair.
  13. 18. sheet of information in the form of a table, graph, or diagram.