Related Clues:

• 'No clue!'
• What does my self-flagellation achieve? I dunno
• "Search me"
• "Haven't the foggiest"
• 'Your guess is as good as mine'
• ''That's tough!''
• 'Heck if I know'
• ''I'm at a loss''
• 'No idea!'
• Pronounced as 'venson'? I haven't a clue!
• Shrugger's remark
• Teams, I bet, will be at odds in 'I'm Sorry I Haven't A Clue'
• I don't understand this strike in desperate times
• '???'
• 'I have no clue'