Denial Security Clearance ?

What is the name of your state? New York
14 years ago recieved OTH discharge for unsat performance in the reserves,
missing Drills. I'm a highly decorated 16 vet of a large Fire Department.
Will the OTH discharge automatically lead to a TS security clearance denial.

You will have to ask those that can make the decision. You don't have a legal question, you have a policy question.