East of Leyton, formerly (6)
I believe the answer is:
orient
'east' is the definition.
(synonyms)
I can't explain the remainder of the clue.
Can you help me to learn more?
(Other definitions for orient that I've seen before include "Acquaint with position" , "Asia" , "Face towards the East?" , "Countries east of the Mediterranean" , "Determine position with regard to points of compass" .)