Fashion frill (6)
I believe the answer is:
ruffle
'fashion frill' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for ruffle that I've seen before include "Dishevel - annoy" , "Disturb the calm or smoothness of - feathers?" , "Upset the composure of" , "Agitate" , "Aggravate" .)