Elite in revolution deprived of a valuable estate? (4)
I believe the answer is:
merc
'valuable estate?' is the definition.
(Mercedes estate car)
I don't understand the remainder of the clue.
(Other definitions for merc that I've seen before include "German make of luxury car (colloq.)" , "German car (abbr)" , "Former cop" , "High-performance German car" , "one hired for foreign work" .)