Related Clues:

• Bit strap
• Seat belt, e.g.
• Jockey's tool
• Old punisher
• See 6 Across
• Rein, e.g.
• Trigger controller
• Helmet attachment, perhaps
• Purse piece
• Horse brake
• Gown part
• Seat belt, essentially
• Bring under control, with "in"
• Handbag part
• Arabian controller