Possible Clues:

• Thames gallery (h)
• U.K. gallery
• 1 time antipyretic suppressing sex appeal first
• Site of Millais's painting 'Ophelia'
• Art gallery founded by sugar magnate
• Thank you note from the gallery
• Art Gallery donor
• Old Poet Laureate, English, had written rubbish before
• Starts to talk artistic tripe, especially here?
• Maurice - - , cricketer 1895-1956