Old magistrate (5)
I believe the answer is:
reeve
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">old magistrate</span>' is the definition.<br/ ><span class="explanation-format__explanation">(historical type of magistrate or judge)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for reeve that I've seen before include "Old English magistrate or bailiff" , "[PILGRIM in the CANTERBURY TALES]" , "Comic actor" , "Former official - female ruff" , "Historical magistrate" .)