Not as many (5)
I believe the answer is:
fewer
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">not as many</span>' is the definition.<br/ ><span class="explanation-format__explanation">(similar in meaning)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for fewer that I've seen before include "Not so many" , "smaller number of people" , "in smaller numbers" , "Less in number" , "Reduced" .)