Administrative centre of Devon (6)
I believe the answer is:
exeter
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">administrative centre of devon</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 exeter that I've seen before include "Devon's county town" , "Devonshire city" , "City in 5 Down" , "South-west English city" , "English cathedral city" .)