Possible Clues:

• Large gathering for Tory to give a damn about nothing
• Wide hallway in a building
• Assembly agrees about nothing before debate's conclusion
• Educational opportunity for prisoners?
• Conservative following the correct route for large hall
• Caught on way in foyer
• Head of construction following schedule to make part of airport
• Open area in or outside a public building
• Cold playing golf in open space
• Prisoner on training session in large hall