The most common and most likely answer to this crossword clue is the 8 letter word BUZZARDS
I've seen this crossword clue in Financial Times
B
U
Z
Z
A
R
D
S
More clues leading to the result BUZZARDS
Buddy explains!
The straight part
We know that "flyers" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case flyers = buzzards.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 BUZZARDS mean?
BUZZARDS noun- Any of several Old World birds of prey of the genus Buteo with broad wings and a broad tail.
- Any scavenging bird such as the American black vulture (Coragyps atratus) or the turkey vulture (Cathartes aura).
- (often preceded by "old", the "old buzzard") In North America, a curmudgeonly or cantankerous man; an old person; a mean, greedy person.
- A blockhead; a dunce.
- A score of two over par (for one hole)