Laughing animal? (5)
I believe the answer is:
hyena
'laughing animal?' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for hyena that I've seen before include "Creature" , "Carnivorous mammal" , "Carnivore with sloping body" , "African scavenger" , "Wolf-like animal with cry like laughter" .)