Animals from the west (4)
I believe the answer is:
Here is my best explanation:
'animals' is the definition.
The answer is an example.
'from the west' is the subsidiary indication.
'from' indicates the answer is hidden within the clue.
'ewes' is hidden within 'the west'.
(Other definitions for ewes that I've seen before include "farm animals", "Sheep (females)", "wool producers", "Females in the flock", "Female sheep", "Adult sheep", "She-sheep" and "members of flock".)