Possible Clues:

• Variety of eel
• Sucker starts to lease another mine next to quarry
• Sucker repeatedly hit target
• Bloodsucker seeing quarry on strike
• Primitive eel-like creature with sucking mouth
• Pound put on game, often losing? Sucker
• Primitive eel-like fish
• Hit on nose saving English swimmer that wriggles
• Beat victim, a sucker
• A favourite of Henry I reputedly beat at game