Street seller (6)
I believe the answer is:
hawker
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">street seller</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 hawker that I've seen before include "Travelling salesman and trader" , "Pedlar" , "Travelling street trader" , "Falconer; salesman" , "One who sells from door to door" .)