Related Clues:

• Stroke, maybe
• Concert ticket info
• One leaving a wake
• Trireme prop
• Propeller of a sort
• Impetus for a rowboat
• Tool at Henley
• It helps you go with the flow
• Crew stick
• Cross the Potomac, perhaps
• Galley figure
• One of 15 in this grid
• Rebus puzzle conjunction
• Canoer's tool
• Kayak propeller