Vocation, task (7)
I believe the answer is:
mission
<span class="explanation-format__ClueExplanation">I believe this clue is a double definition.<br/ ><br/ >'<span class="explanation-format__original">vocation</span>' is the first definition.<br/ ><span class="explanation-format__explanation">(thesaurus)</span><br/ ><br/ >'<span class="explanation-format__original">task</span>' is the second definition.<br/ ><span class="explanation-format__explanation">(I know that mission is a type of task)</span><br/ ><br/ ></span>
(Other definitions for mission that I've seen before include "Special assignment" , "Very dangerous assignment -- Tom Cruise film series" , "Delegation" , "religious establishment" , "Vocation; embassy" .)