Some fox enraged bovine animals (4)
I believe the answer is:
oxen
'bovine animals' is the definition.
(I've seen this in another clue)
'some fox enraged' is the wordplay.
'some' says the answer is hidden in the clue (some parts of the word are used).
'OXEN' can be found hidden inside 'fox enraged'.
(Other definitions for oxen that I've seen before include "Heavy cattle" , "Steers" , "Bovine creatures" , "Horned farm animals" , "Beef stock" .)