Prepared to pray, say (5)
I believe the answer is:
knelt
'prepared to pray say' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for knelt that I've seen before include "Fell to one's knees" , "Rested on a bent leg" , "Assumed posture of prayer" , "Got down (to propose)" , "Prepared to pray?" .)