Possible Clues:

• - - Modern: art gallery
• Maurice, who was one of the early kings of swing with Sussex and England
• Where to see a Constable or Turner, with 'the'
• Home of Constable's 'The Gleaners, Brighton'
• Sir Henry's gallery
• ... London art gallery, with ...
• English poet laureate of 1692-1715
• Flap when head overlooked the art centre
• ..in apartment at Eaton Square
• King Edward, for one, not altogether an art patron