Go in for rent revision at a certain point (5)
I believe the answer is:
enter
'go in' is the definition.
(synonyms)
'rent revision at a certain point' is the wordplay.
'revision' indicates an anagram.
'at' is a charade indicator (letters next to each other) (I've seen this in other clues).
'a certain point' becomes 'e' (E is an example. I am not sure about the 'certain' bit.).
'rent' with letters rearranged gives 'nter'.
'nter' put after 'e' is 'ENTER'.
'for' acts as a link.
Can you help me to learn more?
(Other definitions for enter that I've seen before include "Register (as a competitor)" , "put in for a race" , "Introduce" , "Enrol" , "Go in - set down" .)