Daughter is left to fool around in books (7)

I believe the answer is:

disport

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'to fool around in books' is the definition.
I can't tell whether this defines the answer.

'daughter is left' is the wordplay.
'daughter' becomes 'd' (genealogical abbreviation).
'left' becomes 'port' (left side of a ship - opposite of starboard).
'd'+'is'+'port'='DISPORT'

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(Other definitions for disport that I've seen before include "to have a good time" , "Cavort, lark about" , "Amuse" , "Play about" .)

I've seen this clue in The Guardian.

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