Related Clues:

• Megaphone-shaped
• Like volcanoes
• Tepee-shaped
• Shaped like a megaphone
• Like some drinking cups
• Country's removed from Copernicus' mathematical section
• With a tapering shape
• Like a top
• Shaped like a tepee
• Section, perhaps, dealing with traffic barriers?
• Section of company that's mostly agreeable
• Shaped like an ice cream cornet
• Figure of circle, ellipse, parabola or hyperbola
• One inside cut shell, solid, curved
• Section of maths to study, tricky at heart