Lower classes intended resistance (8)
I believe the answer is:
defiance
'resistance' is the definition.
(defiance is a kind of resistance)
'lower classes intended' is the wordplay.
'lower classes' becomes 'de' (I've seen this in other clues).
'intended' becomes 'fiance' (I've seen this before).
'de'+'fiance'='DEFIANCE'
(Other definitions for defiance that I've seen before include "Open resistance" , "show of rebellion" , "Refusal to comply" , "Aggressiveness" , "Challenging attitude" .)