Gangster's gal (4)
I believe the answer is:
moll
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">gangster's gal</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 moll that I've seen before include "Gangster's tart" , "Gangster's girlfriend" , "Gangster's female companion" , "Hood's girl" , "Gangster's girl" .)