Possible Clues:

• The familiar or informal Taoiseach
• The familiar Mr Ahern, former Taoiseach
• Jeeves's boss __ Wooster, in Wodehouse novels
• How Edward VII was known to his family throughout his life
• Drone, as it were, released inside stage of rocket
• P.G. Wodehouse character
• Edward VII, familiarly
• Nickname of King Edward VII
• ... Ahern, FF politician