Brief violent disturbance in match report? That is probably exaggerated (4,5)
I believe the answer is:
tall story
'brief violent disturbance in match' is the definition.
I know nothing about this answer so I can't judge whether it can be defined by this definition.
'report? that is probably exaggerated' is the wordplay.
I cannot quite see how this works, but
'report?' could be 'story' (story is a kind of report) and 'story' is found within the answer.
'exaggerated' could be 'tall' (I've seen this in another clue) and 'tall' is located in the answer.
This accounts for all the letters.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for tall story that I've seen before include "romance?" , "unreliable account" , "Exaggerated tale" , "Distortion of the truth" , "Exaggerated and incredible yarn" .)