Night prowler (5,3)
I believe the answer is:
alley cat
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">night prowler</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for alley cat that I've seen before include "Stray urban feline" , "City feline that prowls the back lanes" , "Stray mog" , "homeless creature" , "Homeless feline" .)