Related Clues:

• London site
• There's a P.M. there
• The way of the premier?
• Premier premises there
• It's noted for no 10pm working, there in the UK
• The way in which political journalists sometimes speak publicly?
• David starting to take possession on his way to his office?
• The (British) government
• No 10's location
• The way of the British government
• Having a way to support Democratic government
• Site of Chancellor's and PM's homes
• PM's residence
• Political location in West End to ring after disturbance
• British prime minister's address