Possible Clues:

• Desire clothing but not the ordinary sort
• Imagine groom's costume
• Frivolous party garb
• Like the idea of force devoid of uniform or distinctive costume
• Imagine pressure with no universal costume
• Like groom's requirement for party, perhaps
• Masquerade costume?
• Imagine female doctor in unusual costume
• Gown for a ball, e.g.
• Female, Bond girl touring city, sex appeal not apparent in gorilla suit, perhaps