Related Clues:

• Small group experiencing civil unrest back to front
• Pair when joined by royal?
• Players in front row, say, of small musical group
• Group of musicians — or it could be
• Riot involves a musical group
• Group of three musicians
• Group of three (musicians)
• Riot (anag)
• Band of three
• 'South Park' writer Parker
• "Halloween ___" (1982 movie)
• Jonas Brothers, for example
• Small musical combo
• Three, in a deck of cards
• 21-Across, e.g