Related Clues:

• It's essential to a helicopter going up or down
• Helicopter propeller
• It's rubbish or it goes round either way
• Turner that looks the same hung upside-down
• Only moving part of a Tesla engine
• Spinning machine part
• Windscreen- --
• Spinner on a chopper
• Blade cuts both ways?
• Withdraw from euro to revalue what's in circulation
• Protestors release pests with kind of blade
• Turner, stranger to achievement no longer, all may conclude
• Men on bunk: one turns round
• Wide support, after I promoted car accessory
• Whirlybird's moving part