Related Clues:

• Apology prompter
• It can lead to an unearned run
• It may be marked with an X
• Anachronism, e.g.
• It's not right
• Fall off the wagon
• "Blue screen of death" cause
• Huge goof
• Become void
• It might be clerical
• Diamond flub
• It may be in judgement
• Booboo
• Policy end
• Bad break