Possible Clues:

• Social centre for scouts etc
• Scout location, assuming prime minister turns up in ward?
• Exaggerated passion about which to sing sometimes?
• Focus of social activity affected passion
• Hot spot when under canvas?
• Something one's burning to sing about?
• On which scouts cook and around which they sing
• Something burning affected tree close to copse
• See 3
• Approached gathering soft wood for heat source