Book July to go off with Mick (5,3)

I believe the answer is:

lucky jim

'book' is the definition.
(novel by Kingsley Amis)

'july to go off with mick' is the wordplay.
'to go off with' is an anagram indicator.
'july' anagrammed with 'mick' gives 'LUCKY JIM'.

(Other definitions for lucky jim that I've seen before include "Kingsley Amis novel of university life" , "K. Amis's Dixon" .)

I've seen this clue in The Independent.

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