Related Clues:

• Pro's adversary
• Voting "no"
• Opposition party member
• One on the con side
• One who opposes
• Naysayer's view
• Prefix for "disestablishmentarianism"
• In the con camp
• Part 3 of today's quote
• Like some activists
• Prefix for lock
• Pro's opponent
• __-skid brakes
• Boycotting, perhaps
• Start for "knock" or "lock"