3. A problem that one needs to deal with.
Dreams of a gavel denote order, attention, power and respect. Your words are law. See Judge.
To dream of a gavel, denotes you will be burdened with some unprofitable yet not unpleasant pursuit.
To use one, denotes that officiousness will be shown by you toward your friends.
The dream symbol you are looking for is absolutely there, try searching the symbol one by one.