Allowance for boarding house (7)
I believe the answer is:
pension
I believe this clue is a double definition.
'allowance' is the first definition.
(thesaurus)
'boarding house' is the second definition.
(I've seen this before)
'for' acts as a link.
(Other definitions for pension that I've seen before include "Retired person's allowance" , "Retirement allowance" , "what oldies may have earned" , "support for the elderly" , "Nice little hotel" .)