Angry mule, for example (5)
I believe the answer is:
cross
I believe this is a double definition.
'angry' is the first definition.
(I've seen this before)
'mule for example' is the second definition.
(Other definitions for cross that I've seen before include "Mad" , "Burden" , "SECOND HALF OF 9" , "Rood - intersect - annoyed" , "Pass from the wing to the penalty area" .)