Related Clues:

• Is off
• Plays a wrong note, e.g.
• Muffs up
• Does wrong
• Demonstrates fallibility
• Misspells or misspeaks
• Lets in an unearned run
• Overthrows, say
• Isn't right
• Missteps
• Isn't perfect
• Misapprehends, say
• Calls a spade a club
• Gets off track
• Slips some