Jaguar or lion (3)
I believe the answer is:
cat
This clue is a double definition.
'jaguar' is the first definition.
(I've seen this in another clue)
'lion' is the second definition.
(lions are big cats)
(Other definitions for cat that I've seen before include "See 23" , "Feline mammal" , "A tom" , "Animal - one with nine tails!" , "Carnivore; whip" .)