The term 'CROSS BUNS' can be solved by the three letter word 'HOT'. Cross buns are a type of sweet bun that is traditionally eaten during Easter and other religious holidays. They are made with spices such as cinnamon, nutmeg, and allspice, and often contain dried fruit or candied peel. The buns are usually topped with a cross-shaped pastry decoration, hence the name. They are served HOT, hence the solution to the crossword puzzle being 'HOT'.