You can clear all the contents of a specific cache and the cache will be emptied. Please follow the following steps to clear a specific cache.
Using NCache Manager
Open NCache Manager and right click on the cache name from the Cache Explorer.
Click on the Clear Contents option from the right click context menu.
A confirmation window will appear on the screen if you want to clear the cache or not.
On clicking yes, all the cache contents will be cleared.
Using Windows PowerShell
Clear-Cache cmdlet enables the user to clear the cache by removing all the
items currently present in the cache.
The following command clears the items present in the cache named demoClusteredCache forcefully.
Clear-Cache -Name demoClusteredCache -ForceClear