Wrong girl almost abducted (8)
I believe the answer is:
mistaken
'wrong' is the definition.
(similar in meaning)
'girl almost abducted' is the wordplay.
'girl' becomes 'miss' (term of address for an unmarried woman).
'almost' means to remove the last letter (almost the whole word is kept).
'abducted' becomes 'taken' (I can't justify this - if you can you should give a lot more credence to this answer).
'miss' with its last letter taken off is 'mis'.
'mis'+'taken'='MISTAKEN'
Can you help me to learn more?
(Other definitions for mistaken that I've seen before include "Wrong (in judgement)" , "Wrong, incorrect" , "In error in mankiest way" , "Erroneous" , "Wrong in opinion, judgment etc." .)