Appraise; survey (6)
I believe the answer is:
assess
I believe this is a double definition.
'appraise' is the first definition.
(synonyms)
'survey' is the second definition.
(I've seen this in another clue)
(Other definitions for assess that I've seen before include "Remedy for all ills" , "Fix the amount of tax" , "Estimate, decide the value of" , "Gauge, evaluate" , "(Of a tax) determine the amount to be paid" .)