Got a new beast (4)
I believe the answer is:
goat
'beast' is the definition.
The answer and definition can be both animals as well as being singular nouns.
Maybe they are linked in a way I don't understand?
'got a new' is the wordplay.
'new' is an anagram indicator.
'got'+'a'='gota'
'gota' anagrammed gives 'GOAT'.
Can you help me to learn more?
(Other definitions for goat that I've seen before include "Animal in zodiac" , "lecher" , "heavenly sign" , "nanny, for example" , "Domesticated animal supplying milk, meat and wool" .)