Revolutionary register? (4)
I believe the answer is:
roll
This could be a double definition.
'revolutionary' is the first definition.
Although both the answer and definition are singular nouns, I don't see how one could define the other.
'register?' is the second definition.
(list of names)
Can you help me to learn more?
(Other definitions for roll that I've seen before include "Small round piece of bread" , "start a revolution" , "Move by turning over" , "Gymnastic move; bread" , "Official list of members" .)