Mother of Calcutta (6)
I believe the answer is:
teresa
'mother of calcutta' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for teresa that I've seen before include "Woman" , "Does 'e stare at the girl?" , "Mother ..., who ministered to the poor in India" , "Girl's name" , "Saint" .)