Related Clues:

• Countryside worker touring areas separately in cap, say
• Top guard has drugs on the brain?
• Fez and fedora
• Things going to your head?
• More than one bowler maybe in that side
• Metaphor for roles
• Bonnets
• First of haberdasher's agents to stock headgear
• Receptacles for street performers
• They may be felt above you
• Medieval indicators of social status
• Boaters, e.g
• Berets and fedoras
• Tipped toppers
• Fashion accessories for Pharrell (serious question: does he have multiple or is it just one?)