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' (regarding).
'exam results' becomes 'marks' (I can't justify this - if you can you should believe this answer much more).
're'+'marks'='REMARKS'
Can you help me to learn more?
(Other definitions for remarks that I've seen before include "Comments, observations" , "See 14" .)