Related Clues:

• Servitude symbol
• Seat belt restraint
• Oxen's burden
• Scarcely detectable amount
• Leather strap
• It may stop some horseplay
• Rider's strap
• Couple for a brace
• Loafer attachment
• Jock's strap
• Smarty Jones' control
• Curb, with 'in'
• Harness gear
• Thing keeping the team together
• It's straight from the horse's mouth