The most common and most likely answer to this crossword clue is the 8 letter word SCREECHY
I've seen this crossword clue in The Times
S
C
R
E
E
C
H
Y
More clues leading to the result SCREECHY
- Raucous Indian in school yard
- Harsh school unknown to admit certain native Americans
- Shrill South American native starts to call help, yelling
- Shrill and harsh Indians making it through school year
- High-pitched cry she made, as insect got in, leaving stains all over the place
- Shrill native Americans getting through school year
Buddy explains!
The straight part
We know that "Raucous" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case raucous = screechy.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.