The Telegraph perhaps approves of what writers produce? (10)

I believe the answer is:

paperbacks

'what writers produce?' is the definition.
(writers might produce paperback books)

'the telegraph perhaps approves' is the wordplay.
'the telegraph perhaps' becomes 'paper' (the Daily Telegraph is a newspaper).
'approves' becomes 'backs' (backing is a kind of approving).
'paper'+'backs'='PAPERBACKS'

'of' is the link.

(Another definition for paperbacks that I've seen is " Popular books".)

I've seen this clue in The Telegraph.

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