Possible Clues:

• Mysterious drunk seen in East Morecambe?
• Requiring rare knowledge
• Enigmatic sweetheart gets drunk with Ernie's other half
• Like a niche interest
• Secret coteries dismantled
• Secret ice store is in pieces
• Knowable to only a small group
• Fancy stereo discs occasionally used for the select few
• Unusually considerate and lacking something mysterious
• Abstruse Euro-sceptic cup running over