Possible Clues:

• Law that has been passed
• Legal process in a court followed by fellows in hospital department
• Outside court, ten mean to reform law
• Process of passing a law
• Law court besieged by ten mean characters
• Theatrical performance that needs approval of those in house
• Passing staff repelled tormentor -- double or quits
• Stick up marquee perhaps to accommodate mass staging
• Passing of law by legislative body
• The passing of a bill into law