Fight with foils (5)
I believe the answer is:
fence
'fight with foils' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for fence that I've seen before include "Handler of stolen goods" , "Barrier - engage in swordplay" , "Fight with sword - barrier" , "Guard" , "Barrier that serves to enclose an area" .)