Possible Clues:

• 'Deadlock, no progress can be made (7)'
• There's no way ahead: I'm finished
• At an --- (deadlocked)
• Inescapable perdicament, dilemma
• Standstill
• Step of 14 into wrecked semi, from which there's no way out
• Stand-off, stalemate
• That is to say, about the silly Member who gets stuck with it
• One overtakes me? Not quite — one can't make progress here
• That is framing a British politician, the ass, and there's no way out of it