New to this!! some body help me understand

A company is processing me for clearance, I have gone thru their onboarding process and everything, but I am home at the moment I have filled my SF86 online and submitted, is this how the process goes, what if they come back and tell me my clearance is granted but I have found another job, is this how this clearance process works?

The clearance process is a very time consuming process. You very well could find another job in that time, but if you don’t accept it then you would never have your clearance.