Inconsiderate motorist (7)
(Another definition for roadhog that I've seen is " Reckless driver".)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">inconsiderate motorist</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 road hog that I've seen before include "Boorishly reckless driver" , "Thoughtless driver" , "Driving pig?" , "A careless and selfish driver, the swine" , "menace behind the wheel" .)