"Julius Caesar" costume (4)
I believe the answer is:
toga
'julius caesar costume' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for toga that I've seen before include "Cloak of ancient Rome" , "Roman tunic" , "This ancient robe might get your goat" , "Ancient Roman garment" , "Got a cloak for an old Roman" .)