Valuer (8)
I believe the answer is:
assessor
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">valuer</span>' is the definition.<br/ ><span class="explanation-format__explanation">(thesaurus)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for assessor that I've seen before include "One who rates for tax" , "property valuer" , "Valuer, estimator" , "Examiner" , "One making evaluation" .)