Related Clues:

• Lock insert
• A thole holds it
• It may go for a dip in the ocean
• Rower's requirement
• Steering ___
• Use the oars
• Paddle, perhaps
• Sculler's tool
• Column's counterpart
• Outboard backup
• Crew member's implement
• Item for a rowlock
• Propel a dinghy
• One locked in a boat
• Coxswain's order