Financial aid (7)
I believe the answer is:
subsidy
'financial aid' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for subsidy that I've seen before include "Grant given to help with running costs" , "Arts grant, for example" , "Money granted to support an undertaking" , "Grant to help defray costs" , "Grant paid to help with running costs" .)