Delete Clipboard - available from “Edit -> CopyPaste Utilities -> Delete Clipboard” submenu

	Use the “Delete Clipboard” menu to delete a clip in order to free up more memory. Choose “All Items” to free up the most memory. 

Clips can also be deleted  from the Clip Extender Palette.  To delete clips,
    1. option+click on a clipboard,
    2. use the button with the trash can icon to delete all clips.