Possible Clues:

• How, perhaps, a soft-sounding 17 across gets carried over the green
• One's driven to overtake on green, perversely
• One is carried to go by the broken green
• Traveller, westward bound, about to take break touring Scottish loch
• Traveller about to take break, crossing cape in westerly direction
• Go by the green when not driving
• One sharing around English fare
• One in coach, perhaps, sees prang round the bend
• Weak member of team, one being carried by coach?
• Permit, fancy green, for traveller