Solve the Crossword Puzzle! Elementary, my dear.

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Across
  1. 3. Return to a previous location
  2. 5. Abilities or expertise
  3. 7. Piece of evidence or information that helps solve a problem
  4. 9. Crime solver
  5. 10. Scarcely or barely
  6. 11. Not present
Down
  1. 1. Improbable
  2. 2. A form of travel involving carrying one's belongings on their back
  3. 4. Puzzling situation
  4. 6. Natural talent or skill
  5. 8. Below or beneath
  6. 10. Deceptive act