Related Clues:

• Sheet that's worn out
• 'Animal House' wear
• Wrap for some parties
• Party outfit, sometimes
• Senate dress
• Ancient Greek attire
• Cover-up in 47-Down
• Garb for an old senator?
• Old undergarment
• Draped garment
• Certain party attire
• Frat party cover-up?
• "I, Claudius" costume
• Senate cover-up
• Roman Senate wear