Large lemur (5)
I believe the answer is:
indri
'large lemur' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for indri that I've seen before include "Short-tailed lemur of Madagascar" , "Species of lemur" , "Animal" , "Madagascan mammal" , "Big Madagascan lemur" .)