I am taking line out of good book to absorb (6)

I believe the answer is:

imbibe

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'to absorb' is the definition.
(I know this)

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

(Other definitions for imbibe that I've seen before include "Take in (with one's mother's milk?)" , "Drink or absorb into mind" , "Drink in - assimilate" , "Partake of drink" , "Drink, take in" .)

I've seen this clue in The Telegraph.

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