Wine steward (9)
I believe the answer is:
sommelier
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">wine steward</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I know that wine steward can be written as sommelier)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for sommelier that I've seen before include "One waits" , "Wine waiter" , "He offers wine" , "part of restaurant staff" , "Expert" .)