Related Clues:

• Scoreboard item
• Trial companion
• Insubstantial stuff
• Material of no consequence
• Certain computer message
• Overthrow, say
• Failing
• 2 + 2 = 5, e.g.
• Typo, for one
• Baseball blunder
• Mishandled fly, e.g.
• Reason to recalculate
• Infielder's mistake
• Unwanted computer message
• Box-score notation