The most common and most likely answer to this crossword clue is the 10 letter word FROLICKING
I've seen this crossword clue in Financial Times
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More clues leading to the result FROLICKING
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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 FROLICKING mean?
FROLICKING verb- To make merry; to have fun; to romp; to behave playfully and uninhibitedly.
- To cause to be merry.
- The act of one who frolics.