Related Clues:

• Key
• Head
• Chief
• Primary
• Main
• School VIP
• With 53-Across, where Victoria lives?
• High school VIP
• Capital, or debt, on which interest is calculated
• Head teacher, say
• Head for a sound standard
• It is not a matter of interest
• One ahead?
• The first moral we're told
• First thing that sparks interest