Related Clues:

• They're pulled by coachmen
• Curbs, with ''in''
• Shoulder belt
• Metaphor for control
• Buckboard controls
• Controlling powers
• At work in it
• Rules announced as means of control
• Controls are insupportable? Not entirely
• Fasten (horse to cart)
• Controls and rules we hear
• Controls no good in periods of monarchic rule
• Exploit diamonds lacking in their usual quality
• There are certain to be a lot of loose ones in the Grand National
• Short durable cape - that's the gear