Leaves of a book (5)
I believe the answer is:
pages
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">leaves of a book</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 pages that I've seen before include "Hotel employees" , "See 16" , "Sheets of a book" , "Young attendants" , "Book leaves" .)