Each back from one direction (7)
I believe the answer is:
eastern
'from one direction' is the definition.
(from the east)
'each back' is the wordplay.
'each' becomes 'ea' (abbreviation).
'back' becomes 'stern' (stern means the back of a boat).
'ea'+'stern'='EASTERN'
(Other definitions for eastern that I've seen before include "China?" , "Facing away from the west" , "Could be Chinese" , "Coming from the Orient" , "towards daybreak?" .)