Possible Clues:

• Ice cream party
• Word before 'media' or 'butterfly'
• Remarkably, Conservative initially isn't attending latest party
• Word with work or network
• Referring to people and communities
• Amateur seaman turned up for party
• Friendly gathering
• Very good spies start to like being gregarious
• Note agents attached to Liberal Party?
• People with intelligence following jolly leader of Labour Party