Beat through cleverness (6)
(Other definitions for outsmart that I've seen before include "Fox; deceive" , "Outwit" , "Best" , "Win by clever thinking" , "Cunningly get the better of" .)
(Other definitions for outwit that I've seen before include "Show more ingenuity than" , "Deceive through greater ingenuity" , "Outsmart" , "Be too clever for, get the better of" , "To fox" .)