Familiar appellation (8)
I believe the answer is:
nickname
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">familiar appellation</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 nickname that I've seen before include "Sobriquet" , "tag" , "Fond title" , "Jack the Ripper, for example" , "Familiar term of address" .)