No cross words for 5M3

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Across
  1. 2. Does he join in with this ___foolery?
  2. 4. Formal Jim
  3. 5. Is this clue a con or a scam?
  4. 7. The maths book burnt to grey ashes in the tragic fire
  5. 11. See 9 and 12 for a similar start to this crossing structure
  6. 13. Sounds like a handbook for a letter in the alphabet
  7. 14. Rhymes with a noble element
Down
  1. 1. A biblical father figure
  2. 2. I MOT'ed my car but need to go back to the garage
  3. 3. Sounds like it's uncooked and why?
  4. 4. AJ Should subtract 2
  5. 6. I'd freed the fish caught in the net
  6. 8. Part of an astrological sign in January
  7. 9. It's ok, an exam solution will be found
  8. 10. This big tower is not a clock
  9. 12. Organize some of those letters!