Related Clues:

• Tic __: mint
• X or O, in a game
• Uncontrollable movement
• Habitual jerk
• Middle X, say
• Tic -- (breath mint)
• Part of XXX or OOO
• TV's 'Tic ___ Dough'
• Part of a trio
• OOO center
• First of three O's, perhaps
• -- Tac (breath mint)
• Start of a grid game
• Middle of three in a row
• Habitual spasm