Related Clues:

• Formal dress
• Concern of some codes
• Kind of code at some schools
• Rebuke (with "down")
• Formal
• Vestments, e.g.
• Suit yourself?
• Dress-code concern
• Boutique buy, perhaps
• Bride's pride
• Gear
• Don duds
• Glad rags
• Dress code concern
• Prep, as turkeys