The most common and most likely answer to this crossword clue is the 10 letter word CONGENITAL
I've seen this crossword clue in The Daily Telegraph
C
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N
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More clues leading to the result CONGENITAL
- Absolute clot
- Deformity in giant clone is innate
- Complete review of ancient language, say, after study
- Inveterate criminal kind getting time
- Seasoned with time in agreeable surroundings
- Complete idiot, boring clot
- Temperature's pleasant outside, it's natural
- Incorrigible cheat, cheerful after ensnaring model
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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 CONGENITAL mean?
CONGENITAL adjective- (of a trait or a disease) Present since birth.