Cleric said to be one that's loaded? (6)
I believe the answer is:
cannon
'be one that's loaded?' is the definition.
(a cannon may be loaded with ammunition)
'cleric said' is the wordplay.
'cleric' becomes 'canon' (I've seen this before).
'said' indicates a 'sounds like' (homophone) clue.
'canon' is a homophone of 'CANNON'.
'to' acts as a link.
(Other definitions for cannon that I've seen before include "The large gun sounds like a church dignitary" , "Big gun" , "Billiard shot or large gun" , "Field gun" , "Wheeled guns" .)