Stylish girl in outskirts of Coventry (6)
I believe the answer is:
classy
'stylish' is the definition.
(similar in meaning)
'girl in outskirts of coventry' is the wordplay.
'girl' becomes 'lass' (lass can informally mean a girl).
'in' means one lot of letters goes inside another.
'outskirts of' means to remove the middle letters (only letters on the outskirts).
'coventry' with its middle removed is 'cy'.
'lass' put into 'cy' is 'CLASSY'.
(Other definitions for classy that I've seen before include "Stylish (slang)" , "Elegant and fashionable, posh" , "Sophisticated (colloq.)" , "showing style ..." , "Informally stylish and superior" .)