The crossword solution for the term PEACH CRUMBLE BIT is OAT, which stands for Old-fashioned Avena sativa. OAT is a cereal grain that is widely cultivated for its edible seeds. It is a popular ingredient in many breakfast cereals, granola bars, and other baked goods. Oats are also used to make oatmeal, porridge, and other dishes. The term PEACH CRUMBLE BIT refers to a type of dessert made with peaches, oats, and butter.