More comprehensive (5)
I believe the answer is:
wider
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">more comprehensive</span>' is the definition.<br/ ><span class="explanation-format__explanation">('wide' can be similar in meaning to 'comprehensive')</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for wider that I've seen before include "Less narrow, say vision" , "Broader" .)