Chanted (7)
I believe the answer is:
intoned
'chanted' is the definition.
('intone' can be a synonym of 'chant')
This is all the clue.
(Other definitions for intoned that I've seen before include "sounded like the vicar?" , "Started a psalm, perhaps" , "it's said, in a monotonous way" , "Recited almost monotonically" , "Said flatly" .)