An accessory is a small item that you add to your outfit in order to improve your appearance, so an accessory in a dream can represent a small change that you can make in order to improve something in your life.
This can be anything from from spending some extra time on a project to calling someone you haven’t spoken to in a while.
The dream accessory itself can be significant.
For example, if you dream about a handbag, it can be a sign that you are being too materialistic and you should pay more attention to other people’s feelings.
A dream about shoes can be a message regarding whether or not you are on the right path.