Related Clues:

• Sudden movement
• Red hair, e.g.
• One-third of a child's game
• Muscular contraction
• ''Hollywood Squares'' square
• 'A Nervous ___ Motion of the Head to the Left' (Andrew Bird song)
• Something bred for
• Quirky trait
• __-tac-toe
• Little spasm
• First of a game trio
• First X or O
• Peculiar mannerism
• Blue eyes or blond hair
• First O