The most common and most likely answer to this crossword clue is the 12 letter word POLYSYLLABIC
P
O
L
Y
S
Y
L
L
A
B
I
C
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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 POLYSYLLABIC mean?
POLYSYLLABIC noun- A word having more than one syllable
- (of a word) Having more than one syllable; having multiple or many syllables.
- (of spoken or written language) Characterized by or consisting of words having numerous syllables.