Rate or figure (6)
I believe the answer is:
reckon
I believe this clue is a double definition.
'rate' is the first definition.
(thesaurus)
'figure' is the second definition.
(synonyms)
'or' acts as a link.
(Other definitions for reckon that I've seen before include "Think - calculate" , "Calculate or opine" , "Count or calculate" , "Believe, suppose, judge" , "Calculate or conclude" .)