Sandwich shop

The answer to the crossword question, “sandwich shop is DELI,” is based on the word “deli” which is short for delicatessen. A delicatessen is a type of store where you can buy prepared foods, such as meats, cheeses, and salads, which can be used to make sandwiches. In other words, a deli is a type of sandwich shop. So, the answer to the crossword question is that the word “deli” is a synonym for sandwich shop.