Sinistral side (4)
I believe the answer is:
left
(Other definitions for left that I've seen before include "It's not right" , "split" , "Facing north, it's the side toward the west" , "The side of socialism" , "The sinister side" .)
I believe the answer is:
left
(Other definitions for left that I've seen before include "It's not right" , "split" , "Facing north, it's the side toward the west" , "The side of socialism" , "The sinister side" .)