Driver of "BlacKkKlansman" (4)
I believe the answer is:
adam
'driver of blackkklansman' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for adam that I've seen before include "Biblical progenitor of human race" , "man expelled from garden" , "First guy" , "Scots. architect brothers" , "God's first son" .)