The most common and most likely answer to this crossword clue is the 11 letter word COTONEASTER
I've seen this crossword clue in The Daily Telegraph
C
O
T
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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 COTONEASTER mean?
COTONEASTER noun- Any of several erect or creeping shrubs, of the genus Cotoneaster, that have pinkish flowers and red berries.