Possible Clues:

• Fence feature
• Upright with hinges
• Garden entrance component, perhaps
• Our mutual confidant?
• Fence part
• Supporter's social media entry showing match attendance?
• 'Revolver': a record so over time it may be seen on the way out
• One privy to secret supporter of opener
• Get to spa, knackered — support needed at end of drive?
• Entrance boundary, perhaps