Possible Clues:

• A bore - but sounds keen
• A bore keen to be heard
• A bore, but utterly enthusiastic
• Sudden rise in tide of river
• It's a bore, bird of prey abandoning lake for river
• We agreed to shut up this bore
• English see eye to eye only briefly? That’s a bore
• Bore keen to get a hearing
• Bore raring to be heard
• 20-foot wave, sometimes