The most common and most likely answer to this crossword clue is the 5 letter word BOARS
I've seen this crossword clue in The Guardian
B
O
A
R
S
Buddy explains!

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 BOARS mean?
BOARS noun- A wild boar (Sus scrofa), the wild ancestor of the domesticated pig.
- A male pig.
- A male boar (sense 1).
- A male bear.
- A male guinea pig.