Linguist (8)
I believe the answer is:
polyglot
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">linguist</span>' is the definition.<br/ ><span class="explanation-format__explanation">(synonyms)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for polyglot that I've seen before include "Multilingual person" , "Having command of many languages" , "One speaks several languages" , "Using several languages" , "Speaking many languages" .)