friends 7yr old boy started throat clear, eye blink, squeal tics. Has full blown strep, could this be panda? Transient tic? What expert handles this?

Depends .. The hallmark trait for pandas is sudden acute & debilitating onset of intense anxiety and mood lability accompanied by obsessive compulsive-like issues and/or tics in association with a streptococcal-a (gabhs) infection that has occurred immediately prior to the symptoms. Therefore, if this is an abrupt change in behavior, then pandas is possible. See http://pandasnetwork.Org to find a provider.
Unclear background. Is your friend asking for help? He/she should be working with pediatrician. While panda seems to be a real phenomenon, don't worry about this yet. Usually these patients need to be seeing a strong team - psychiatry, pediatrician, neurology - to treat the findings, for now.