Spotted feline mammal of the Americas (6)
I believe the answer is:
ocelot
(Other definitions for ocelot that I've seen before include "Feline mammal" , "Nocturnal wild cat of Central and South America" , "Wild cat, native to Central and South America - loo etc (anag)" , "Striped and spotted wildcat" , "American cat, like a small leopard" .)