The term 'Sushi STUFF' is a combination of two words, 'sushi' and 'STUFF'. Sushi is a type of Japanese cuisine consisting of cooked vinegared rice combined with other ingredients such as seafood, vegetables, and sometimes tropical fruits. The word 'STUFF' refers to a variety of items, usually small objects, that are used in the preparation of sushi. The crossword solution for this term is 'ROE', which is the eggs of fish or other aquatic animals used as a topping or filling in sushi dishes.