The most common and most likely answer to this crossword clue is the 11 letter word RIP-ROARING
I've seen this crossword clue in The Times
R
I
P
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R
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A
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G
Buddy explains!
The straight part
We know that "Wild, noisy" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case wild, noisy = rip-roaring.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 RIP-ROARING mean?
RIP-ROARING adjective- Exciting, energetic, enthusiastic, with gusto.