Internet admin (5)
I believe the answer is:
sysop
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">internet admin</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 sysop that I've seen before include "person to help with computer?" , "network controller" , "IT expert" , "techie" .)