Possible Clues:

• Old emperor of Japan
• He was over where you'd expect to find a 12 across, just for show
• Is the maid OK as a rule in the Far East?
• That's OK with the Maid of Savoy (6)
• Gilbert and Sullivan's emperor
• Where to hear 'Tit-Willow,' with 'The'
• Heart of pilot dying to do for his ruler?
• What, as a rule, may be played in a 33 across way
• Japanese emperor from G & S
• Japanese 2