Tan sari folded for empress (7)
I believe the answer is:
tsarina
'empress' is the definition.
(I've seen this before)
'tan sari folded' is the wordplay.
'folded' indicates anagramming the letters.
'tan'+'sari'='tansari'
'tansari' with letters rearranged gives 'TSARINA'.
'for' acts as a link.
(Other definitions for tsarina that I've seen before include "top Russian women" , "lady of some importance" , "Wife of former Russian ruler" , "titled lady" , "Nicholas's wife" .)