Zola novel (4)
I believe the answer is:
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">zola novel</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 nana that I've seen before include "Zola's heroine" , "Relative" , "granny" , "Fool; grandmother" , "Grandma" .)