Further; extra (4)
I believe the answer is:
more
<span class="explanation-format__ClueExplanation">I believe this is a double definition.<br/ ><br/ >'<span class="explanation-format__original">further</span>' is the first definition.<br/ ><span class="explanation-format__explanation">(synonyms)</span><br/ ><br/ >'<span class="explanation-format__original">extra</span>' is the second definition.<br/ ><span class="explanation-format__explanation">(both can mean additional)</span><br/ ><br/ ></span>
(Other definitions for more that I've seen before include "To a greater extent" , "Extra (for Sir Thomas?)" , "Greater quantity or number" , "Writer" , "author" .)