Star's transport
I believe the answer is:
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">star's transport</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for limo that I've seen before include "Luxury car" , "Luxurious car (colloq.)" , "Set of rooms" , "Stretched car (abbr)" , "vehicle" .)