Partially outwitted fool (4)

I believe the answer is:

twit

'fool' is the definition.
(thesaurus)

'partially outwitted' is the wordplay.
'partially' says the answer is hidden in the clue.
'TWIT' is hidden within 'outwitted'.

(Other definitions for twit that I've seen before include "dunce" , "Mild word for a fool" , "Slangily a foolish person" , "Silly person (colloq.)" , "Silly fool" .)

I've seen this clue in The Independent.

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