Stubborn equine (4)
'stubborn equine' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for mule that I've seen before include "Backless slipper" , "footwear" , "Hybrid beast" , "Obstinate quadruped" , "Donkey and horse cross" .)
'stubborn equine' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for ass that I've seen before include "Turkey" , "An American backside" , "Silly fellow in passionate state" , "Charlie" , "Donkey - fool" .)