Possible Clues:

• May perhaps supports a piece that�s turned up to be useless
• Useless to turn weapon on a politician
• Futile having a weapon to the left used by right-winger
• ... one of which is flipping politician of no value
• Worthless or of no real value
• Key piece written about politician that's useless
• Futile, of no value
• Worthless Greek character, little good, a politician
• Worthless weapon returned by a politician
• A piece written about politician is worthless