Philosopher's inclination to overact (7)

I believe the answer is:

bentham

'philosopher's' is the definition.
(Jeremy Bentham)

'inclination to overact' is the wordplay.
'inclination' becomes 'bent' (bent is a kind of inclination).
'to overact' becomes 'ham' ('ham' can be a synonym of 'overact').
'bent'+'ham'='BENTHAM'

(Another definition for bentham that I've seen is " Jeremy ---, utilitarian philosopher".)

I've seen this clue in The Times.

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