The most common and most likely answer to this crossword clue is the 9 letter word CATERWAUL
I've seen this crossword clue in Financial Times
C
A
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L
More clues leading to the result CATERWAUL
- Screech of curlew at a cuckoo
- A “wart” clue, poor, getting shrill response?
- To supply wide transport husband let out a screech
- Wail about Paul heading off on wild water
- Howl – wound’s beginning to ulcerate badly
- Sound of two queens with an unsated lust primarily
- Aware Cult with New Order produces discordant shriek
- Sound barrier? First, Fritz, er, produces shriek?
- Disturbed at a curlew’s screech
- You finally react with law being broken and howl
Buddy explains!

The straight part
We know that "screech" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case screech = caterwaul.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 CATERWAUL mean?
CATERWAUL noun- A yowling.
- A noisy quarrel.
- To cry as cats in heat; to make a harsh, offensive noise.
- To have a noisy argument, like cats.