Related Clues:

• Successful slimmer working on a flat bottom
• Bargee less likely to win a straight fight?
• Worker on river is less weighty figure
• Fellow on boat less serious having got to isle
• Fellow working in harbour not such a muscular chap?
• Docker after dieting?
• Perhaps match island's help for loading ships
• One at the docks who has lost weight?
• Stevedore who doesn't carry as much weight as others?
• Dock worker's less serious fellow
• Chap after dieting who's often seen in dock?