Evaluate, rate (6)
I believe the answer is:
assess
<span class="explanation-format__ClueExplanation">I believe this clue is a double definition.<br/ ><br/ >'<span class="explanation-format__original">evaluate</span>' is the first definition.<br/ ><span class="explanation-format__explanation">(synonyms)</span><br/ ><br/ >'<span class="explanation-format__original">rate</span>' is the second definition.<br/ ><span class="explanation-format__explanation">(to assess is to rate or evaluate)</span><br/ ><br/ ></span>
(Other definitions for assess that I've seen before include "Evaluate (quality)" , "Gauge, evaluate" , "Estimate, gauge" , "Rate, evaluate" , "Evaluate, estimate" .)