Positioned face to the west (4)
I believe the answer is:
laid
'positioned' is the definition.
(laying is a kind of positioning)
'face to the west' is the wordplay.
'face' becomes 'dial' (dial is a kind of face).
'to the west' is a reversal indicator.
'dial' written backwards gives 'LAID'.
(Other definitions for laid that I've seen before include "Deposited" , "settled" , "Put down like dial" , "Prepared (a trap)" , "Produced (an egg)" .)