Ancient invader (4)
I believe the answer is:
goth
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">ancient invader</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for goth that I've seen before include "Youngster clad in black" , "One of Germanic tribe that invaded Roman empire" , "punk style" , "Girl in black perhaps" , "Rock music fan favouring black clothing" .)