A boxing match in quite rough terms (5)
I believe the answer is:
about
'a boxing match in quite rough terms' is the definition.
I can't tell whether this defines the answer.
'a boxing match' is the wordplay.
'boxing match' becomes 'bout' (I've seen this in another clue).
'a'+'bout'='ABOUT'
Can you help me to learn more?
(Other definitions for about that I've seen before include "Almost; around" , "Concerning or around" , "nearby" , "Regarding" , "Close to" .)