Possible Clues:

• Daily, standing at a stop, caught bus
• Risk reduced, sheikh's clamped wheels
• Cleaner with a prohibition order caught coach
• Horse involved in accident after tailing vehicle
• Short opportunity to acquire horse and vehicle it could pull
• Old-fashioned sightseeing coach
• Omnibus
• Endless opportunity to keep horse and coach
• Clean a bar for 100 from early bus
• Brief opportunity to secure Omani, perhaps, as coach