The most common and most likely answer to this crossword clue is the 5 letter word HUBBY
I've seen this crossword clue in The Guardian
H
U
B
B
Y
More clues leading to the result HUBBY
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 HUBBY mean?
HUBBY noun- (term of endearment) Husband.
- Full of hubs or protuberances.