Disturbance about a scarf (6)
I believe the answer is:
fracas
'disturbance' is the definition.
(I've seen this before)
'about a scarf' is the wordplay.
'about' is an anagram indicator.
'a'+'scarf'='ascarf'
'ascarf' with letters rearranged gives 'FRACAS'.
(Other definitions for fracas that I've seen before include "Free-for-all" , "A scarf (anag)" , "Noisy brawl" , "Dispute" , "Uproar - brawl" .)