Pray to some in centre: atheists? (7)
I believe the answer is:
entreat
'pray' is the definition.
(I've seen this in another clue)
I can't explain the rest of the clue.
Can you help me to learn more?
(Other definitions for entreat that I've seen before include "Beg earnestly, implore" , "Ask (someone) earnestly" , "Beg earnestly, beseech" , "Beseech, implore" , "Request earnestly" .)