The most common and most likely answer to this crossword clue is the 8 letter word GROWLING
I've seen this crossword clue in The Daily Telegraph
G
R
O
W
L
I
N
G
More clues leading to the result GROWLING
Buddy explains!
The straight part
We know that "making wild animal noises" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case making wild animal noises = growling.The cryptic/wordplay part
In cryptic crossword there's often an wordplay/cryptic part as well.This part involves a more complex hint, such as an anagram, homophone, hidden word, etc.
Sadly, We don't have an explanation for this specific crossword clue yet.
What does GROWLING mean?
GROWLING verb- To utter a deep guttural sound, as an angry animal; to give forth an angry, grumbling sound.
- Of a wind instrument: to produce a low-pitched rumbling sound.
- To send a user a message via the Growl software library.
- To express (something) by growling.
- To play a wind instrument in a way that produces a low-pitched rumbling sound.
- A sustained instance of growls or guttural noises.
- The technique of producing a low-pitched growling or rumbling sound on a wind instrument.
- Producing a growl.