Claim for support, financially (8)
I believe the answer is:
maintain
This could be a double definition.
'claim' is the first definition.
(to maintain is to continue to claim something)
'support financially' is the second definition.
'maintain' can be an answer for 'support' (I've seen this before). I am not sure about the 'financially' bit.
'for' acts as a link.
Can you help me to learn more?
(Other definitions for maintain that I've seen before include "Look after the upkeep" , "Keep in existence or in repair" , "Keep going" , "Keep in good order" , "Preserve or insist" .)