The most common and most likely answer to this crossword clue is the 9 letter word GUILELESS
I've seen this crossword clue in The Guardian
G
U
I
L
E
L
E
S
S
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 GUILELESS mean?
GUILELESS adjective- Free from guile; honest but naive.