Rani's attire (4)
I believe the answer is:
sari
'rani's attire' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for sari that I've seen before include "Traditional dress of Hindu women" , "Traditional Indian women's dress" , "South Asian garment (variant spelling)" , "Something worn" , "Asian dress" .)