The most common and most likely answer to this crossword clue is the 10 letter word DELIGHTFUL
I've seen this crossword clue in The Guardian
D
E
L
I
G
H
T
F
U
L
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 DELIGHTFUL mean?
DELIGHTFUL adjective- Pleasant; pleasing, bringing enjoyment, satisfaction, or pleasure.