Possibly airs clothing (4)
I believe the answer is:
Here is my best explanation:
'clothing' is the definition.
(sari is a kind of clothing)
'possibly airs' is the subsidiary indication.
'possibly' indicates an anagram.
'airs' is an anagram of 'sari'.
(Other definitions for sari that I've seen before include "Hindu woman's dress", "Eastern garment", "Traditional Indian women's dress", "habit", "Something worn", "Traditional dress of Hindu women", "South Asian garment (variant spelling)", "Traditional dress of Indian women", "Indian costume" and "Traditional Indian garment".)