Not as important (6)
I believe the answer is:
lesser
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">not as important</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for lesser that I've seen before include "Not so important (one)" , "That which is smaller, as of two evils" , "Smaller; inferior" , "Not as great" , "Smaller, minor" .)