Related Clues:

• They're not talking
• "An ___ of the People" (Ibsen)
• Combatants
• Some are bitter or sworn
• They're opposed in war
• Foe hiding, in a way, in the puzzle's four longest answers
• Ill-wisher
• The Axis, to the Allies
• Hatfield, to a McCoy
• Allies' antitheses
• The FBI, to the mob
• Them, with "the"
• Foes, opponents
• Hostile person, foe
• Foe, adversary