Uriah __: Dickens villain (4)
I believe the answer is:
heep
I believe this is a double definition.
'uriah' is the first definition.
(I've seen this in another clue)
'dickens villain' is the second definition.
(Uriah Heep, villain in Dickens' David Copperfield)
(Other definitions for heep that I've seen before include "Uriah . . . ., arch-hypocrite in 'David Copperfield'" , "Uriah . . . . , Dickens hypocrite" , "lawyer's clerk" .)