Comments about exam results (7)
I believe the answer is:
remarks
'comments' is the definition.
('remark' can be a synonym of 'comment')
'about exam results' is the wordplay.
'about' becomes 're' ('re' means regarding or about).
'exam results' becomes 'marks' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
're'+'marks'='REMARKS'
Can you help me to learn more?
(Other definitions for remarks that I've seen before include "Comments, observations" , "See 14" .)