Andean ruminants (6)
I believe the answer is:
llamas
'andean ruminants' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for llamas that I've seen before include "South American animals related to camels but humpless" , "South American cud-chewing animals" , "Camel-like animals" , "South American pack animals" , "South American animals like the camel" .)