Width (7)
I believe the answer is:
breadth
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">width</span>' is the definition.<br/ ><span class="explanation-format__explanation">(synonyms)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for breadth that I've seen before include "Distance from side to side" , "Lateral extent" , "generosity of mind" , "Wide measurement" , "Red bath (anag)" .)