Neglected neighborhood (4)
I believe the answer is:
slum
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">neglected neighborhood</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 slum that I've seen before include "Squalid and overcrowded urban area" , "Squalid neighbourhood" , "Squalid, overcrowded dwelling" , "Over-crowded run-down city area" , "Poor-quality accommodation" .)