Danny DeVito sitcom (4)
I believe the answer is:
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">danny devito sitcom</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 taxi that I've seen before include "Danny DeVito sitcom" , "move on ground before take-off" , "At airport, guide" , "Part of fleet" , "(Of a plane) move slowly on the ground" .)