Destroy books, trashy magazines and film (4,7)

I believe the answer is:

pulp fiction

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

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

(Other definitions for pulp fiction that I've seen before include "Trashy novel" , "Tarantino film with John Travolta" .)

I've seen this clue in The Times.

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