Petting zoo critter (5)
I believe the answer is:
'petting zoo critter' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for llama that I've seen before include "Alpaca" , "provider of wool" , "South American cud-chewing mammal" , "Pack animal, native to the Andes" , "South American beast of burden" .)