Briefer (7)
I believe the answer is:
shorter
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">briefer</span>' is the definition.<br/ ><span class="explanation-format__explanation">('short' can be a synonym of 'brief')</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for shorter that I've seen before include "More lacking in length" , "With less length" , "Lower in stature" , "More limited in duration" , "Brusquer" .)