Curtains for each in cart (7)
I believe the answer is:
drapery
'curtains' is the definition.
(I've seen this before)
'each in cart' is the wordplay.
'each' becomes 'per'.
'in' means one lot of letters goes inside another.
'cart' becomes 'dray' (a cart without sides for delivering heavy loads).
'per' placed into 'dray' is 'DRAPERY'.
'for' acts as a link.
(Other definitions for drapery that I've seen before include "Bulgaria's eastern border" , "collection of fabrics" , "Fabric hanging in loose folds" , "Cloth goods." , "Curtains and other hangings" .)