Possible Clues:

• Reads the Riot Act in the house to one of those trying to get rid of Old Bill
• Legislator
• Congressman, for one
• One faced with many bills
• The house of Wyatt Earp at the OK Corral
• Acts on one's initiative?
• One whose achievements are honoured in court
• Serious about including William, a king and legislator
• Member of Congress, say
• Sod, possibly, sitting in Parliament?