Humble Catholic hasn't lost any fingers (7)
I believe the answer is:
chasten
'humble' is the definition.
(I've seen this in another clue)
I don't understand how the rest of the clue works.
(Other definitions for chasten that I've seen before include "Subdue the pride of, discipline" , "Subdue - a stench (anag)" , "Punish, purify" , "Humble" , "Suppress" .)