Complete lifting of revolutionary's loss of rights (9)
I believe the answer is:
attainder
'loss of rights' is the definition.
(I've seen this before)
'complete lifting of revolutionary's' is the wordplay.
'complete' becomes 'attain' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'lifting of' says the letters should be written backwards.
'revolutionary' becomes 'red' (red can informally mean communist).
'red' in reverse letter order is 'der'.
'attain'+'der'='ATTAINDER'
Can you help me to learn more?
(Other definitions for attainder that I've seen before include "losing certain rights" , "Loss of land and civil rights through conviction for treason" , "punishment for treason" , "loss of property" , "criminal loss" .)