The most common and most likely answer to this crossword clue is the 8 letter word BLUENOSE
I've seen this crossword clue in The Times
B
L
U
E
N
O
S
E
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 BLUENOSE mean?
BLUENOSE noun- A prude.
- A person from Nova Scotia, Canada.
- A variety of potato from Nova Scotia, Canada.
- A follower of Everton Football Club.
- A follower of Birmingham City Football Club.
- A trout cod (Maccullochella macquariensis)
- Antarctic butterfish (Hyperoglyphe antarctica)
- Blue-throated wrasse (Notolabrus tetricus)