Related Clues:

• Septic or social starter
• Nay-saying
• Thorn in the establishment's side
• Prefix for trust
• Cousin of ''contra-''
• Objecting to
• Obstructing, maybe
• Climactic opening?
• Voting ''no''
• Partisan leader?
• Second group in a voice vote
• Policy opposer
• ABM component
• Person in opposition
• Pro fighter?