Having a permanent post (7)
I believe the answer is:
tenured
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">having a permanent post</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for tenured that I've seen before include "with a job for life?" , "Holding a permanent post" , "having secure job" , "Unlikely to be removed from office" .)