Advantage, sake (7)
I believe the answer is:
benefit
I believe this clue is a double definition.
'advantage' is the first definition.
(I've seen this before)
'sake' is the second definition.
(thesaurus)
(Other definitions for benefit that I've seen before include "allowance" , "Payment" , "Something that aids" , "Advantage or blessing" , "Advantage; dole" .)