Overrun, lethal housing standing empty (5)
I believe the answer is:
unlet
'standing empty' is the definition.
(as in an empty or unlet property)
'overrun lethal housing' is the wordplay.
'housing' says the answer is hidden in the clue (part of the clue houses the answer).
'UNLET' is hidden in the letters of 'overrun lethal'.
(Other definitions for unlet that I've seen before include "Not rented out" , "(Of property) with no tenant found" , "Still to be leased out" .)