The most common and most likely answer to this crossword clue is the 10 plus 5 letter word CONFIDENCE TRICK
I've seen this crossword clue in The Daily Telegraph
C
O
N
F
I
D
E
N
C
E
T
R
I
C
K
More clues leading to the result CONFIDENCE TRICK
- Cheating king enveloped in self-assurance given approval rating
- In which one’s had secret set of cards
- Unusual kind of eccentric fraud
- Eccentric kind of rough hustle
- Running eccentric kind of swindle
- Fraud with ton in secret stack
- Swindle loaded eccentric? Kind of
- Secret cards to be won? Don’t be fooled by this
- Unexpectedly eccentric kind of swindle
- Faith right to be imprisoned in credit fraud
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.