Possible Clues:

• What ends up in sexy gathering for Nero, possibly?
• Mass revelry
• Wild party first four in 14 initially arranged
• Wild gathering
• Party for letting go of some left-leaning minority groups
• Binge over, guy must purge insides
• Bout of bacchanalia
• Very intimate get-together
• Lovefest, literally
• Bess's partner heading off for wild celebration