Related Clues:

• The ''O'' in OTB
• Away from work
• Command to a pooch on a couch, maybe
• At the expense of
• On one's way
• Light-switch position
• Missing the mark
• Like birdies
• Incorrect
• Not oneself
• Cancelled
• Running partner?
• Erroneous
• Competition ender
• ''They're ___!'' (racetrack cry)