Possible Clues:

• Progress hampered by setter repeatedly leading to deadlock
• Deadlock that is about MP and fool
• One's rather old-fashioned cul-de-sac
• Stalemate as setter's out of date
• Dead end that is restricting motorway progress
• The setter is no longer cool, coming to standstill
• Independent politician innocent with European deadlock
• What a has-been may say is a deadlock?
• This setter's over the hill — a serious difficulty
• Yours truly is no longer popular, there's no escaping it