Slum dwelling (5)
I believe the answer is:
hovel
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">slum dwelling</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for hovel that I've seen before include "Shanty; hut" , "A wretched little dwelling" , "Degraded house" , "Wretched building" , "wretched place" .)