A rent got reviewed, according to plan (2,6)
I believe the answer is:
on target
'according to plan' is the definition.
'a rent got reviewed' is the wordplay.
'reviewed' indicates an anagram (To look at again and re view).
'a'+'rent'+'got'='arentgot'
'arentgot' is an anagram of 'ON TARGET'.
(Other definitions for on target that I've seen before include "Up to the planned level" , "Heading in the right direction" , "Accurate (shot)" , "Keeping to a course" , "Reaching the aim point" .)