Fetch sheep from the east (3)
I believe the answer is:
get
'fetch' is the definition.
(I know that fetch can be written as get)
'sheep from the east' is the wordplay.
'sheep' becomes 'teg' (I've seen this before).
'from the east' is a reversal indicator (on a map from right to left).
'teg' backwards is 'GET'.
(Other definitions for get that I've seen before include "Procure from vegetables" , "Understand" , "Escape" , "Fetch or obtain" , "See 18" .)