Campus authority
I believe the answer is:
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">campus authority</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for dean that I've seen before include "school head" , "Cathedral dignitary; head of university department" , "Clergyman; narrow valley" , "Head of e.g. faculty" , "Churchman" .)