It's wrong to be in an uprising (4)
I believe the answer is:
evil
'it's wrong' is the definition.
(associated in meaning)
I don't understand the rest of the clue.
Can you help me to learn more?
(Other definitions for evil that I've seen before include "Vile (anag) -- really bad" , "Badness, depravity" , "Extremely unpleasant" , "Wicked or immoral" , "Very wicked or bad" .)