Related Clues:

• Thin projection for fish to steer itself
• A fish uses it to steer itself
• Swimmer's flipper
• What's on the fish is the last thing you'd expect.
• On the fish what is always at the end
• Wrong if it turns - that's the end
• It's wrong if it turns up at last
• C of this for the fish for those who are late
• It's a bit fishy, and that is the end of it
• I.F.S. in here no more
• 11 down has it's forte in it
• The first of 1 down on the fish is at last
• On the fish is the end
• On a fish is at last
• Aquatic appendage