Like a farm animal, somewhat embarrassed (8)
I believe the answer is:
sheepish
I believe this clue is a double definition.
'like a farm animal' is the first definition.
(like a sheep)
'somewhat embarrassed' is the second definition.
(Other definitions for sheepish that I've seen before include "Shamefaced, embarrassed" , "embarrassment" , "Shyly embarrassed" , "Embarrassedly shy" , "Shy, shamefaced" .)