Scot's fine line in affray (5)
I believe the answer is:
brawl
'affray' is the definition.
(I've seen this before)
'scot's fine line' is the wordplay.
I cannot quite understand how this works, but
'fine' could be 'braw' (synonyms) and 'braw' is located in the answer.
'line' could be 'l' (used when specifying particular lines from a poem) and 'l' is found within the answer.
This accounts for all the letters.
This explanation may well be incorrect...
'in' acts as a link.
Can you help me to learn more?
(Other definitions for brawl that I've seen before include "Noisy quarrel" , "Abounding" , "Rowdy scuffle" , "Affray" , "dispute" .)