The most common and most likely answer to this crossword clue is the 13 letter word COSMOPOLITANS
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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 COSMOPOLITANS mean?
COSMOPOLITANS noun- A cosmopolitan person; a cosmopolite.
- A cocktail containing vodka, triple sec, lime juice and cranberry juice.
- A butterfly, Vanessa cardui