Related Clues:

• Like prom gowns
• Requiring a tie, e.g.
• Smart, in a way
• Super deluxe
• Like evening gowns
• High-end, as accommodations
• Spice Girl who wed Beckham
• Elegant and fashionable
• Formal, sartorially
• Formally attired
• Black-tie
• Uptown
• Like tuxedos
• Upper-crust
• Appropriate for a formal dinner