Woman's part of mass (6)
I believe the answer is:
gloria
I believe this clue is a double definition.
'woman's' is the first definition.
'part of mass' is the second definition.
(I've seen this before)
(Other definitions for gloria that I've seen before include "-- Gaynor, disco diva" , "Woman" , "piece of church music" , "Hymn of praise" , "Doxology" .)