Possible Clues:

• Parliamentary reformer
• Church painter, a nineteenth century reformer
• Stock-market specialist upset by IT crash on closing of account
• Reformer of 'Top of the Pops'?
• Church painter who supported reform
• Domestic Dickens character scrapping with English reformer
• Chief Constable, say, is a social reformer
• Gong given to performer who tried to bring reform?
• UK reform movement member
• Check on painter, a member of a working-class movement