Competent as biblical victim reportedly (4)
I believe the answer is:
able
'competent' is the definition.
(similar in meaning)
'biblical victim reportedly' is the wordplay.
'biblical victim' becomes 'abel' (I've seen this in another clue).
'reportedly' indicates a 'sounds like' (homophone) clue.
'abel' sounds like 'ABLE'.
'as' is the link.
(Other definitions for able that I've seen before include "... was I ere I saw Elba (palindrome)" , "displaying skill" , "Clever skilful" , "Having the ability to do something" , "Having great proficiency or intelligence" .)