Relate point about revised rate (7)
I believe the answer is:
pertain
'relate' is the definition.
(synonyms)
'point about revised rate' is the wordplay.
'point' becomes 'pin' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'about' indicates putting letters inside.
'revised' indicates anagramming the letters.
'rate' is an anagram of 'erta'.
'pin' enclosing 'erta' is 'PERTAIN'.
Can you help me to learn more?
(Other definitions for pertain that I've seen before include "Have relevance" , "Painter (anag) - relate (to)" , "Be related or applicable (to something)" , "Be relevant, or belong as part" , "Refer" .)