The role of a Grocery Clerk involves various tasks centered around customer service and maintaining store operations. Responsibilities include stocking shelves, organizing displays, assisting customers with inquiries, and ensuring products are well-stocked and neatly arranged. Grocery Clerks also handle cash transactions at checkout, maintain cleanliness in their assigned areas, and may assist in receiving and unpacking shipments. They play a crucial role in providing a positive shopping experience and keeping the store running smoothly.