Crossword Genius

Here's a book for you (6)

Ross

I believe the answer is:

reader

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'you' is the definition.
(I've seen this before)

I cannot understand how the rest of the clue works.

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(Other definitions for reader that I've seen before include "Reared by book lover" , "Peruser of texts" , "She lectures" , "Person studying a book" , "University lecturer; book of educational extracts" .)

I've seen this clue in the Evening Standard.
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