Not an author but an accountant (9)

I believe the answer is:

bookmaker

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'accountant' is the definition.
(I have seen 'Turf accountant' mean 'bookmaker' so perhaps 'accountant' could also mean 'bookmaker')

I can't explain the rest of the clue.

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(Other definitions for bookmaker that I've seen before include "Bet taker" , "Compiler" , "Betting shop owner" , "One financially dependent on backers" , "one accepting wagers" .)

I've seen this clue in the Evening Standard.

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