Wrong maiden is captured (8)
I believe the answer is:
mistaken
'wrong' is the definition.
('mistaken' can be similar in meaning to 'wrong')
'maiden is captured' is the wordplay.
'maiden' becomes 'm' (cricket abbreviation).
'captured' becomes 'taken' (I've seen this before).
'm'+'is'+'taken'='MISTAKEN'
(Other definitions for mistaken that I've seen before include "Erroneous" , "Wrong, incorrect" , "Wrong-headed" , "Wrong in opinion, judgment etc." , "Wrong (in judgement)" .)