Peninsula? Wrong answer (6)
I believe the answer is:
crimea
'peninsula?' is the definition.
(Crimea is an example)
'wrong answer' is the wordplay.
'wrong' becomes 'crime' (I've seen this before).
'answer' becomes 'a' (abbreviation eg in Q and A).
'crime'+'a'='CRIMEA'
(Other definitions for crimea that I've seen before include "Where there was a battle" , "Ukrainian peninsula, site of a 19th century war" , "Black Sea region" , "Peninsula in Ukraine where the Light Brigade charged" , "Disputed Black Sea peninsula" .)