Mean, underhand (3,4)
I believe the answer is:
low down
(Other definitions for low down that I've seen before include "whole story?" , "Mean" , "information" , "Abysmal" , "hill of less than average height" .)
I believe the answer is:
low down
(Other definitions for low down that I've seen before include "whole story?" , "Mean" , "information" , "Abysmal" , "hill of less than average height" .)