Her work is bound to be read by bookmaker (6)

I believe the answer is:

author

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'bookmaker' is the definition.
The definition and answer can be both people as well as being singular nouns.
Maybe you can see an association between them that I don't see?

I don't understand how the remainder of the clue works.

Can you help me to learn more?

(Other definitions for author that I've seen before include "Book producer" , "One who has written" , "Ford, for example" , "Pen" , "Generator, writer" .)

I've seen this clue in The Irish Times.

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