The term SQUIRREL SNACK is composed of three crossword solutions: NUT (3 letters), NUTLET (6 letters), and ACORN (5 letters). Nuts are a type of hard-shelled fruit that contain a single seed, and are a popular snack for squirrels. Nutlets are small nuts, such as hazelnuts or walnuts. Acorns are the fruits of oak trees, and are also a favorite snack of squirrels. All three of these items are commonly eaten by squirrels, making them ideal snacks for these animals.