Offensive sight (7)
I believe the answer is:
eyesore
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">offensive sight</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for eyesore that I've seen before include "Ugly sight, not nice to see" , "Ugly item" , "Blight" , "A monstrous carbuncle" , "pigsty" .)