Related Clues:

• Tracks of birds
• Castigates, with "at"
• Cloverleaf branches
• Some accessways
• Trackage
• Skatepark features
• Train lines?
• Support bars
• Safety bed features
• Fence pieces
• "Goin' off the ___ on a crazy train!"
• Moving-van accessories
• Skateboarders' inclines
• Flight alternatives
• Boat launching aids