Related Clues:
- Letter on Kal-El's costume
- What a collective noun usually lacks
- Starts at either end?
- Superman's monogram
- Sudanese leader?
- Ogee-arch shape
- Road race challenge
- Meandering curve
- Last letter in most plurals (but not in this puzzle's six longest answers, which are the only plurals in this grid)
- Lion chaser?
- Letter carried by messenger
- Sinuous character
- Curve in a driving exam
- Most of a figure eight
- A snaky letter?