Albrecht ___, German painter and printmaker regarded as the greatest artist of the Northern Renaissance (5)
I believe the answer is:
durer
(Other definitions for durer that I've seen before include "Old master" , "Albrecht -, Ger. artist" , "From Renaissance artist" , "Albrecht -, C15-16 German artist" , "Albrecht --, German engraver/painter" .)