Frock that gives little wear? (9)
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I believe the answer is:
minidress
'frock' is the definition.
(I know that minidress is a type of frock)
'little wear?' is the wordplay.
'little' becomes 'mini'.
'wear?' becomes 'dress' (both can mean a person's clothing).
'mini'+'dress'='MINIDRESS'
'that gives' acts as a link.
(Other definitions for minidress that I've seen before include "Very short garment" , "Very short clothing item" .)