Psalms singer (6)
I believe the answer is:
cantor
'psalms singer' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for cantor that I've seen before include "lead singer" , "Singer in a Jewish synagogue" , "Synagogue official who conducts the liturgical part of the service" , "Carton (anag.)" , "Queen (in legal usage)" .)