Possible Clues:

• "Rule, Britannia!" conductor
• Very tall Obama cabinet member Duncan
• ''A-Hunting We Will Go'' composer
• 18th-century composer Thomas
• Village in Dorset
• "Tom Thumb the Great" composer
• Arranger, oddly enough, a regular Prom contributor
• Egg chair designer Jacobsen
• Duncan of the cabinet
• Thomas —, composer of Rule Britannia