Allowance for boarding house (7)
I believe the answer is:
pension
I believe this is a double definition.
'allowance' is the first definition.
(thesaurus)
'boarding house' is the second definition.
(I've seen this before)
'for' is the 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" .)