Related Clues:

• -- alia
• Prefix with personal or planetary
• Opposer
• Not even a semipro?
• In opposition to
• 'Nay!' sayer
• With the enemy, perhaps
• ''Social'' leader
• Not in favor
• Proposal opposer
• Opposing voice
• Course intro?
• Prefix with freeze
• Freeze front?
• Changeable opener?