Possible Clues:

• Retired and retaining title as an honour
• Keeping hon. title in retirement
• Title given to retired professor
• Honorably retired professor
• No longer having old chair that's worth being kept by girl in recession
• Description of retired professor who has retained his title
• Retiree's designation
• Retired prof's title
• Rue items that describe person retired but retaining title
• Title of one honourably retired from duty