Armed robber (6)
I believe the answer is:
bandit
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">armed robber</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for bandit that I've seen before include "Thief" , "hood" , "Violent robber" , "Member of a robber gang" , "Desperado" .)