The most common and most likely answer to this crossword clue is the 10 letter word HOOTENANNY
I've seen this crossword clue in The Guardian
H
O
O
T
E
N
A
N
N
Y
More clues leading to the result HOOTENANNY
- Kids’ mother follows nose, right away finding party
- Dance Tannoy one repaired after end of ceilidh
- Party where nurse seen after nose cut
- Warning sound mainly preceding childminder’s musical gathering
- That’s hilarious, grandma was given drug at informal concert
- Scream at English nurse: ‘Listen to folk here!’
- Party almost sounded scornful of the modern state?
- Nurse follows nose, right away finding party
- Anthony, on E, crashed party
Buddy explains!

The straight part
We know that "party" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case party = hootenanny.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 HOOTENANNY mean?
HOOTENANNY noun- An informal, festive performance by folk singers, often including audience participation with the use of acoustic instruments.
- A placeholder word for a nonspecific or forgotten thing (see thingamajig, whatchamacallit)