Name, moniker (6)
I believe the answer is:
handle
<span class="explanation-format__ClueExplanation">I believe this clue is a double definition.<br/ ><br/ >'<span class="explanation-format__original">name</span>' is the first definition.<br/ ><span class="explanation-format__explanation">(a handle is a name)</span><br/ ><br/ >'<span class="explanation-format__original">moniker</span>' is the second definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ ></span>
(Other definitions for handle that I've seen before include "Feel; name (colloq.)" , "Manipulate; name" , "Knob" , "Infectious disease" , "Cope with" .)