Insect takes off from pages of book (9)

I believe the answer is:

flyleaves

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'pages of book' is the definition.
The answer and definition can be both related to communication as well as being plural nouns.
Perhaps there's a link between them I don't understand?

'insect takes off' is the wordplay.
'insect' becomes 'fly' (fly is a kind of insect).
'takes off' becomes 'leaves' (I've seen this before).
'fly'+'leaves'='FLYLEAVES'

'from' is the link.

Can you help me to learn more?

I've seen this clue in The Times.

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