Got a new robe (4)
I believe the answer is:
toga
'robe' is the definition.
(I have seen 'Roman robe ' mean 'toga' so perhaps 'robe' could also mean 'toga')
'got a new' is the wordplay.
'new' is an anagram indicator.
'got'+'a'='gota'
'gota' with letters rearranged gives 'TOGA'.
(Other definitions for toga that I've seen before include "Roman clothing" , "Outer garment" , "Garment worn by men in ancient Rome" , "Robe worn by Caesar" , "Cloak of ancient Rome" .)