If you accuse someone in a dream, it is likely that the person you are accusing represents an aspect of yourself.
You are angry at a part of yourself for making you have uncomfortable feelings or thoughts, or for making you do something that you now regret.
A dream that you are wrongly accused by someone else can mean that you have been blamed for something that is not your fault in waking life.
Dreaming that you have been wrongly accused can be a message that you are being too hard on yourself.