Related Clues:

• Make silly faces
• A lens fits in it
• Part of most eyeglasses
• Swine __
• World Health Organization concern
• Wheel edge
• It goes around in winter
• Slam-dunk circle
• H1N1 virus, e.g.
• W.H.O. concern
• A&W rival
• Hoop's hoop?
• Word after blue or bird
• Make faces
• Crime center?