Your comment of the lashon is interesting. “I believe the Lashon is Tzurva MeiRabannan, not Talmid Chacham”. In Bava Metzia 19a that lashon is also used in an exclusive sense.
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Perhaps one can say this is only a Rabbinic student of the time of the gemara. Though it also seems to be used for a Torah Scholar.
See Chullin 133a for a case were both tzurva meirabannan is used and talmid chacham. The prior being used to allow a kohen to confer the kohanic gifts to a tzurva meirabannan who is in need. The later being the case of a talmid chacham who teaches someone who is undeserving and thus is destined to gehenom.