Possible Clues:

• Dead end for Philistine's old hat
• Lively
• Blockage, but almost got by after motorway backed up
• I am stupid fellow, grabbing pawn -- game's ending in stalemate
• Stalemate that is restricting politician, twerp
• Confrontation of fool by devil ending in tense deadlock
• Motorway backed up -- almost overtook, but no way forward
• Deadlock father's fitted in newly-built semi
• Deadlock that is broken by person elected ahead of idiot
• Stalemate is old-fashioned after one gets married