Standard rent, perhaps, as for one's spouse? (7)
I believe the answer is:
partner
'spouse?' is the definition.
(I know that spouse can be written as partner)
'standard rent perhaps' is the wordplay.
'standard' becomes 'par' (standard of play in golf).
'perhaps' indicates an anagram.
'rent' with letters rearranged gives 'tner'.
'par'+'tner'='PARTNER'
'as for one's' acts as a link.
This may not be right. Some or all of it may be part of another bit of the clue.
Can you help me to learn more?
(Other definitions for partner that I've seen before include "Sidekick" , "One of a married couple" , "Comrade" , "Either member of a couple" , "Business associate; one of a couple" .)