Biblical progenitor of the human race (4)
I believe the answer is:
adam
'biblical progenitor of the human race' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for adam that I've seen before include "Eves husband" , "who transformed the Palladian style?" , "father figure" , "First man of Genesis" , "who was tempted by mate?" .)