The most common and most likely answer to this crossword clue is the 4 letter word KAKA
K
A
K
A
More clues leading to the result KAKA
Buddy explains!
The straight part
We know that "a parrot" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case a parrot = kaka.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 KAKA mean?
KAKA noun- Any of four taxa of birds in the genus Nestor in the parrot family confined to New Zealand and adjacent islands.