Charge judge (4)
I believe the answer is:
rate
This clue is a double definition.
'charge' is the first definition.
(rate is a kind of charge)
'judge' is the second definition.
(rating is a kind of judging)
(Other definitions for rate that I've seen before include "Strongly criticise" , "Consider" , "The number of times something happens in a given period" , "Regard" , "Amount measured against another" .)