Gathered by seamstress, a ripped Indian dress (4)
I believe the answer is:
sari
'indian dress' is the definition.
(I've seen this before)
'gathered by seamstress a ripped' is the wordplay.
'SARI' is hidden within the letters.
But, I'm not sure how this is indicated.
Can you help me to learn more?
(Other definitions for sari that I've seen before include "South Asian garment (variant spelling)" , "Eastern garment" , "habit" , "Hindu woman's dress" , "Traditional Indian garment" .)