Nifty, Shifty, and Fifty-Too!

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Across
  1. 2. French, for 'castle'
  2. 3. As a private investigator would
  3. 5. Authored
  4. 6. Mineral, minus 'e'
  5. 7. Expressing motion in a direction
  6. 8. To be summoning, a memory perhaps
  7. 12. Outflow of Money
  8. 14. To stumble, typically over something
  9. 15. Female Offspring
Down
  1. 1. Caused by Earth's rotation
  2. 2. 1998 Danish Film "Festen" in English
  3. 4. James the 3rd, to James the 4th
  4. 9. A 2008 horror adventure film directed by Carter Smith
  5. 10. In chemistry, prefixed as 'tetra'
  6. 11. A thing designed to inflict bodily harm
  7. 13. Having transferred a sum
  8. 16. Every single of them