Popular newspaper size (7)
I believe the answer is:
tabloid
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">popular newspaper size</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 tabloid that I've seen before include "Popular style of newspaper, not broadsheet" , "Small size newspaper" , "Small-format newspaper" , "Ad lib to get lowbrow newspaper" , "Star, maybe" .)