Whiskered pet (3)
I believe the answer is:
cat
'whiskered pet' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for cat that I've seen before include "Animal (domesticated or wild)" , "Tiger, for instance" , "eg Leopard" , "Lash < jazz fan" , "one's pyjamas? They're an excellent thing" .)