Hot dish eaten by psalmist (5)
I believe the answer is:
salmi
'hot dish' is the definition.
(type of casserole)
'eaten by psalmist' is the wordplay.
'eaten by' indicates the answer is hidden within the clue.
'SALMI' can be found hidden inside 'psalmist'.
(Other definitions for salmi that I've seen before include "Casserole" , "game stew" , "game dish" , "Game ragout" .)