Type of diet affected certain apes (11)

I believe the answer is:

pescetarian

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'type of diet' is the definition.
I know nothing about this answer so I can't judge whether it can be defined by this definition.

'affected certain apes' is the wordplay.
'affected' is an anagram indicator.
'certain'+'apes'='certainapes'
'certainapes' is an anagram of 'PESCETARIAN'.

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I've seen this clue in The Times.

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