When you select an item in the Symbols list, various properties of that symbol are displayed in the Description area as appropriate. These can include:
The name of the symbol's home package and an indication of whether it is external or internal
The symbol name
The dspec class names for any definitions known to the system
The names of the packages (other than the home package) that the symbol is visible in
The function or macro function
The lambda list of the function or macro, if known to the system
The symbol plist, if non-nil
The value of a variable or constant
The class name, representing the class object
Select an item in the Description list to perform an operation on it. For example, if the symbol has a class definition, you can select the Class: item and do Works > Description > Listen to transfer the class object to the Listener tool.