Related Clues:

• Was Albert about the end of 30 across?
• There was something about that chap Albert
• Here's a stand-in about the chap
• Substitute ruler
• One ruling about a lady's man
• Soak outside toilet on plane, say, finding way through central London
• George IV, before he became King
• Ruler during monarch's minority
• Stand-in monarch
• Ruler standing in for monarch
• Someone ruling on behalf of another
• College board member
• Trustee
• Ruler
• Regular payment to retain, say, acting chief