Roman robe (4)
I believe the answer is:
toga
'roman robe' 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 "Got a cloak for an old Roman" , "Robe for an ancient Roman" , "Robe of ancient Rome" , "Roman clothing" , "Robe worn by Caesar" .)