Hello Nurdan Kaynar,
There is no clean agent tool for Mac. for that matter our development team has pulled back the clean agent tool and no longer allows it to be used without submitting an engineering ticket first. It seems to many people were using it as their primary tool, and Microsoft does not want us providing that to users.
for assistance in uninstalling Mac manually please see:
How to Uninstall the Symantec DLP Endpoint Agent
Kind regards
Tye