Invaders of ancient Rome (5)
I believe the answer is:
goths
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">invaders of ancient rome</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 goths that I've seen before include "Germanic invaders of Roman empire" , "Ancient Germans who gave their name to a style of architecture" , "Rome's Germanic invaders" , "Tribesmen who brought down the Roman empire" , "A Teutonic people who invaded the Roman Empire" .)