Holiday seller (6,5)
I believe the answer is:
travel agent
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">holiday 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 travel agent that I've seen before include "Trip organiser" , "I fix breaks" , "Holiday seller" , "One arranging holidays" , "Holiday arranger" .)