Related Clues:

• Opposition figure
• Challenger bogus, by the sound of it?
• Nemesis, e.g
• One opposed to you
• Come to a stop in lake in Panama, say
• Orc, to an Elf
• Nemesis, say
• "Friend or ___?"
• Guard's order
• Word related to ''feud''
• Enemy runs away from front ...
• Sentry’s cry
• 'Company, ___!'
• Personal opponent
• "Stop!" to a sentry