A young woman’s unsuitable (5)

I believe the answer is:

amiss

'unsuitable' is the definition.
(I've seen this before)

'a young woman's' is the wordplay.
'young woman' becomes 'miss' (title for a young woman).
'a'+'miss'='AMISS'

(Other definitions for amiss that I've seen before include "Mistakenly" , "Faulty" , "inappropriately" , "astray" , "(Gone) wrong" .)

I've seen this clue in The Independent.

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