Hi Scottm.
its not necessary , by configuring the Syslog Target and Correct filter should work.
By configuring in Log configuration > Syslog server you can specify the default log level for each service and its associated modules based on DEBUGGING requirement.
Please make sure UDP or TCP ( as per configured in syslog target) port 514 is open between ClearPass and Syslog server.
Or else work with TAC for faster resolution.