The most common and most likely answer to this crossword clue is the 11 letter word HANDWRITING
I've seen this crossword clue in The Daily Telegraph
H
A
N
D
W
R
I
T
I
N
G
More clues leading to the result HANDWRITING
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 HANDWRITING mean?
HANDWRITING verb- To write something manually, normally used to emphasise that it is not being typed.
- The act or process of writing done with the hand, rather than typed or word-processed.
- Text that was written by hand.
- The characteristic writing of a particular person.
- (by extension) A characteristic trait or hallmark by which somebody may be recognised.