The most common and most likely answer to this crossword clue is the 9 letter word POOH-POOH
I've seen this crossword clue in The Guardian
P
O
O
H
-
P
O
O
H
More clues leading to the result POOH-POOH
Buddy explains!

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 POOH-POOH mean?
POOH-POOH verb- To dismiss idly with contempt or derision.