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 "Traditional dress of Indian women", "Eastern garment", "South Asian garment (variant spelling)", "Traditional Indian women's dress", "Traditional dress of Hindu women", "Hindu woman's dress", "Indian costume", "Traditional Indian garment", "Indian robe" and "Asian dress".)