Related Clues:

• A blunder, faux pas
• Slangy acronym meaning in total confusion
• A social blunder
• Drop this to make a blunder
• A slang blunder - drop it
• Drop a blunder
• What a mistake to be landed with this, by the sound of it!
• What a mistake not to use the net, by the sound of it! ()
• You'd be making a big mistake to get cross after a century and a half
• Sounds as if the part of this is that it's a mistake
• Such a blunder for 12 across to use this, by the sound of it
• What a mistake for 21 across! Cross it at last
• Big glitch
• Huge blunder
• Embarrassing error