Related Clues:

• Inflammatory prefix
• Hostile one
• Contrarian, e.g.
• Foe's position
• Dote preceder
• Pro's foe
• Not supporting
• Less-than-climactic start?
• The "A" of ABM
• Knock or social preceder
• Nay voter
• Prefix for freeze
• One who's against
• Definitely not a pro
• Social starter?