The second son gets caught up in Bible-bashing (4)
I believe the answer is:
abel
'the second son' is the definition.
(second son of Adam and Eve)
'caught up in bible-bashing' is the wordplay.
'caught up' is a reversal indicator (in a down clue, letters go up).
'in' says the answer is hidden in the clue.
'leba' is hidden within 'bible bashing'.
'leba' in reverse letter order is 'ABEL'.
'gets' is the link.
(Other definitions for abel that I've seen before include "Second child" , "Adamson" , "Early man equipped" , "Brother killed by Cain" , "He was slain by Cain" .)