Over-pricey clothes a model valued (5)
I believe the answer is:
rated
'valued' is the definition.
('rate' can be a synonym of 'value')
'over-pricey clothes a model' is the wordplay.
'over' shows that the letters should be reversed in order.
'pricey' becomes 'dear' (synonyms).
'clothes' indicates putting letters inside (some letters clothe or cover others).
'a model' becomes 't' (Ford Model T car).
'dear' enclosing 't' is 'detar'.
'detar' written backwards gives 'RATED'.
(Other definitions for rated that I've seen before include "Scolded - valued" , "Classified or graded" , "Scolded, estimated" , "Castigated" , "Estimated, set at" .)