Related Clues:

• Procter & Gamble brand
• Group of eight
• Four duos
• Santa's reindeer, e.g.
• Pizza slices, often
• Quarterfinals group
• The planets, e.g.
• Square dance group
• Two vocal quartets
• Any noble gas, save helium
• Santa's reindeer team, e.g.
• Full set of bicuspids, e.g.
• Double quartet
• Eightsome
• Septet plus one