The most common and most likely answer to this crossword clue is the 6 letter word CALLED
I've seen this crossword clue in The Daily Telegraph
C
A
L
L
E
D
More clues leading to the result CALLED
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 CALLED mean?
CALLED verb- (heading) To use one's voice.
- (heading) To visit.
- (heading) To name, identify or describe.
- (heading) Direct or indirect use of the voice.
- (sometimes with for) To require, demand.
- To announce the early extinction of a debt by prepayment, usually at a premium.
- To demand repayment of a loan.
- To jump to (another part of a program) to perform some operation, returning to the original point on completion.