Possible Clues:

• Leavening agent that's also a cleaning product
• It gets a raise if it does its job well
• Sodium bicarbonate, a white soluble compound
• Man like that, awful clothes, a cleaner
• Ruler therefore in poor area is the cause of rising
• Graduate from The Palace contacts 24 across, an agent responsible for The Rising
• Graduate from The Palace on the drink with agent responsible for The Rising
• What raises family is covered by 'for a start, be a good sport and fuss around!'
• The pastry chef ordered a ..
• Muddle bad, go in and ask for cleaner