Chronicler sneaks a look at broadcast (5)

I believe the answer is:

pepys

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'broadcast' is the definition.
Both the answer and definition are singular nouns.
Perhaps you can see a link between them that I don't see?

I don't understand the remainder of the clue.

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(Other definitions for pepys that I've seen before include "Old writer" , "London diarist" , "Journalist" , "English civil servant and diarist, d. 1703" , "Diary-writer" .)

I've seen this clue in The Telegraph.

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