Area of New York (6)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">area of new york</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 harlem that I've seen before include "Part of New York City" , "New York neighbourhood" , "Area of New York city" , "some of the Big Apple" , "'District of Manhattan, noted for jazz clubs (6)'" .)