Book season involving censor's cases (7)

I believe the answer is:

baggage

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'book season involving censor's cases' is the definition.
I can't judge whether this defines the answer.

'book season involving censor's' is the wordplay.
'book' becomes 'b'.
'season' becomes 'age'.
'involving' means one lot of letters goes inside another.
'censor' becomes 'gag' (I've seen this before).
'age' going around 'gag' is 'aggage'.
'b'+'aggage'='BAGGAGE'

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(Other definitions for baggage that I've seen before include "Impedimenta" , "Saucy girl - accompanying travellers" , "Army equipment" , "Travellers' luggage" , "reclaimed in Carousel" .)

I've seen this clue in The Guardian.

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