Eastern robe (6)
I believe the answer is:
kimono
'eastern robe' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for kimono that I've seen before include "dressing-gown" , "Traditional Japanese robe with wide sleeves" , "Long loose Japanese robe" , "Jap. wrap" , "Kobe robe?" .)