Old Testament song (5)
I believe the answer is:
psalm
'old testament song' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for psalm that I've seen before include "Song of David" , "Song - hymn - prayer" , "Sacred song from Old Testament" , "Sacred poem attributed to David" , "Lamps (anag) -- song" .)