Revolutionary movement's superficial mark, we hear (5)
I believe the answer is:
wheel
'revolutionary movement's superficial' is the definition.
I can't judge whether this definition defines the answer.
'mark we hear' is the wordplay.
'mark' becomes 'weal' (I've seen this before).
'we hear' shows a homophone (sound like).
'weal' is a homophone of 'WHEEL'.
Can you help me to learn more?
(Other definitions for wheel that I've seen before include "Roller on vehicle" , "Turn on axis" , "Parade order" , "Catherine -; gear -" , "- - of Fortune" .)