Possible Clues:

• Take responsibility from poor old usher
• Bear -- one seen by side of road
• Joint's to burn slowly, hot for minutes
• 'This ought to get 'er armed, perhaps (8)'
• Take responsibility for joint
• It's hard, running along the motorway!
• Take responsibility for repairing old hurdles
• Queen following ought to support 'Under Pressure'
• Carry burden jumping hurdles round ring
• See 10 Across