Related Clues:

• Prefix with conservative
• Foot portion
• Sole's curve
• Spot for a keystone
• Fingerprint feature
• Grand entrance
• Keystone spot
• Sole support?
• Symbol of triumph
• Curve, as the back
• Shoe support
• It may fall on a foot
• Half a McDonald's logo
• Dramatic entryway
• Instep, e.g.