Get satin from the east to show discernment (5)
I believe the answer is:
taste
'discernment' is the definition.
(having discernment is having good taste)
'get satin from the east to show' is the wordplay.
'to show' indicates the answer is hidden within the clue.
'from the east' shows that the letters should be reversed in order (on a map from right to left).
'etsat' is hidden in the letters of 'get satin'.
'etsat' backwards is 'TASTE'.
(Other definitions for taste that I've seen before include "style" , "Delicate discrimination" , "Sip" , "Gustatory sensation" , "Relish or discrimination" .)