Church abandons part of bible - it's more fitting (5)
I believe the answer is:
apter
'more fitting' is the definition.
(I've seen this in another clue)
'church abandons part of bible' is the wordplay.
I cannot really see how this works, but
'part' could be 'te' (te is a kind of part) and 'te' is found in the answer.
This may be the basis of the clue (or it may be nonsense).
'it's' is the link.
Can you help me to learn more?
(Other definitions for apter that I've seen before include "Fitter" , "More suitable - prate (anag)" .)