Thracian slave who led a revolt of gladiators against Rome (9)
I believe the answer is:
spartacus
(Other definitions for spartacus that I've seen before include "Roman slave leader - 1954 ballet composed by Aram Khachaturian - 1960 film starring Kirk Douglas" , "Roman revolutionary" , "Rebel Roman slave" , "revolutionary leader" , "Roman slave who led an uprising against Roman legions" .)