Possible Clues:

• Parabola, e.g.
• It might prevent failures
• Gentle bend, arc
• Pinup feature
• Around five, this remedy might send one round the bend
• Enough to send you round the bend (like that brute Crosaire, to start with)
• Arc, bend
• How the cur starts to go round the bend
• Bending line
• Line that isn't straight