Bit of cereal Crossword Clue

 The answer to the crossword clue "Bit of cereal" is OAT.

The word "oat" is a noun that refers to a type of cereal grain that is grown for its edible seed. Oats are a good source of fiber and carbohydrates, and they are often used to make breakfast cereals, oatmeal, and granola.

The word "oat" can also be used as a verb, meaning to sow or plant oats.

Here is an example of how the word "oat" can be used in a sentence:

I had a bowl of oatmeal for breakfast this morning.

I hope this helps!