Cut the mustard (7,2)
I believe the answer is:
measure up
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">cut the mustard</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for measure up that I've seen before include "Reach required standard" , "adequate for the job?" , "take dimensions" , "Cut the mustard" , "determine the altitude?" .)