Possible Clues:

• Elderly old boy upset in wine shop
• Store that may carry Mexican brands
• Baja grocery
• Person needs time going round wine store
• Getting on, old boy knocked over wine in this shop
• Guadalupe grocery
• Waited on Georgia in the wine shop
• Old former pupil turned up in wineshop
• Fellow takes a long time going round wine store
• Person, say, associated with a wine shop