Possible Clues:

• French term which once meant a light dish between courses at a formal banquet, and later a dessert
• Meet stern eccentric getting something to eat
• Dish encountered in hospital department, on Sundays principally
• Rent meets this, of course
• Tense term, having reorganised course
• Dish encountered in hospital department research
• Visiting Jobcentre, met supervisor for course
• Dish found in street men dug up