Early victim of some Bible-basher turned back (4)
I believe the answer is:
abel
'early victim' is the definition.
(first murder victim in the Bible)
'some bible-basher turned back' is the wordplay.
'some' indicates a hidden word (some of the parts of the word are used).
'turned back' shows that the letters should be reversed in order.
'leba' can be found hidden inside 'bible basher'.
'leba' in reverse letter order is 'ABEL'.
'of' is the link.
(Other definitions for abel that I've seen before include "Old Testament brother" , "Slain biblical brother" , "He was slain by Cain" , "Biblical murder victim" , "The first recorded murder victim" .)