Possible Clues:

• Mature former pupil promoting wine shop
• Fair amount of 6 down, for example, linked to American wine-seller
• Neighborhood grocery store
• Corner store that may have a cat
• Standard requirements on application form reversed for wine seller
• Empty bistro and stuck-up old wine shop
• "In the Heights" shop
• Spanish grocer
• Wine store putting up mature old Burgundy principally
• Chap, say, with ace wine shop