Clergyman taking a point to heart may be fired (6)
I believe the answer is:
cannon
'heart may be fired' is the definition.
I can't judge whether this defines the answer.
'clergyman taking a point' is the wordplay.
'clergyman' becomes 'canon' (canon is a kind of clergyman).
'taking' means one lot of letters goes inside another.
'a point' becomes 'N' (N is an example).
'canon' placed around 'n' is 'CANNON'.
'to' acts as a link.
Can you help me to learn more?
(Other definitions for cannon that I've seen before include "Great gun" , "Heavy ordnance" , "Gun sounds like a churchman" , "Caught girl on piece of artillery" , "Large artillery piece" .)