Possible Clues:

• Total extremist
• Militant spoke outside clubs
• A bitter uprising separating two sides on the left?
• Extremist spoke about start of communism
• Militant Clair upset to receive notice
• Endless wireless communications initially on a line that's a revolutionary type
• Progressive artist rejected LSD and left
• Revolutionary spoke about Conservative
• Set on getting out of declarations with extremist
• Extremist King made rich pals all disrobe