By virtue of one's position (2,7)
I believe the answer is:
ex officio
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">by virtue of one's position</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for ex officio that I've seen before include "By right of office" , "By virtue of one's status" , "By virtue of one's official position, Latin phrase" .)