Prepared to pray (5)
I believe the answer is:
knelt
'prepared to pray' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for knelt that I've seen before include "congregation did it" , "Rested on the knees" , "Assumed posture of prayer" , "Got down (to propose)" , "... for which one might have done this" .)