The most common and most likely answer to this crossword clue is the 6 letter word ORIOLE
O
R
I
O
L
E
More clues leading to the result ORIOLE
- Bird, first in oven, one having stuffed part
- Bird heading for oven, one having stuffed part
- Bird hunter cut loose after evisceration
- What’s taken from the heart of florist? Violets
- Bird, duck, on turbulent Loire
- Bird with yellow part, one concealed Clue revised online to “Bird with round part, one concealed” as the original version had an R ‘left over’
- Bird‘s expression of approval about river in Spain
- Cheer about Ferdinand getting the bird
- Golden centre of violet’s one of 24
- ‘Nothing’ ex-English captain has ‘left to give’ — English winger
Buddy explains!

The straight part
We know that "flier" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case flier = oriole.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 ORIOLE mean?
ORIOLE noun- Any of various colourful passerine birds, the New World orioles from the family Icteridae and the Old World orioles from the family Oriolidae.