Related Clues:

• Could be flat in error
• Unintentional mark on the music score
• Unintended note
• Unintended stress to a learner I'd kept in
• Dial out with foreign accent -- that's unexpected
• Western drops lead character for a chance
• Chance, inadvertent
• Nice cat lad gets befuddled -- it's not intended
• Unexpected eruption at Iceland obscures heart of glacier
• Chance one might be natural?
• Casual character on staff, not sharp!
• *Liberal arts college on the West Coast
• It's beside the point to a police department following top criminal going bonkers losing the head
• Flat, say, without planning
• Unwitting detectives interrupt a copper facing gangster