The most common and most likely answer to this crossword clue is the 8 letter word POPINJAY
I've seen this crossword clue in The Daily Telegraph
P
O
P
I
N
J
A
Y
More clues leading to the result POPINJAY
- Briefly visit crow and parrot
- Foppish type’s invitation to bird to call?
- Dandy to go off with fashionable bird
- Briefly visit Japan? Yes, that’ll be dandy
- Bird after lemonade, then home for macaroni
- Fop gets to drop by on bird
- Foppish type to pay a quick call on one who talks foolishly at length
- Conceited person’s report covered by flier
- Conceited person‘s to pay a call with bird
- Visit briefly Kay’s predecessor, conceited type
Buddy explains!

The straight part
We know that "macaroni" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case macaroni = popinjay.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 POPINJAY mean?
POPINJAY noun- (now obsolete outside heraldry) A parrot.
- A decorative image of a parrot on a tapestry, cloth etc.
- A vain, gaudy person; someone who is shallow or superficial.
- A target to shoot at, typically stuffed with feathers or plumage.
- The green woodpecker, Picus viridis.