Related Clues:

• Crescent piece
• 14 Across segment
• 19 Across shape
• See 9 Across
• Compass line
• Brow line?
• Curved part
• 3 part?
• What pop-ups do
• Paris's ___ du Carrousel
• Semicircle path
• Lead-in to sine, cosine, or tangent
• Shot-put path
• A pop-up has one
• Parabola, for one