The most common and most likely answer to this crossword clue is the 9 letter word COCKATOOS
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Buddy explains!

The straight part
We know that "some parrots" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case some parrots = cockatoos.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 COCKATOOS mean?
COCKATOOS noun- A bird of the family Cacatuidae with a curved beak and a zygodactyl foot.
- A lookout posted during a two-up game, when gambling was illegal.