Related Clues:

• Penn, for one
• Princeton's League
• Ivy, for one
• Columbia, e.g.
• Sunset crosser
• Clinging vine
• -- League
• Tree hugger?
• Grape or watermelon
• Some Christmas greenery
• Trellis plant
• Tarzan's transportation
• Collegiate climber
• Wrigley stuff
• Handful for Tarzan