The most common and most likely answer to this crossword clue is the 5 letter word BLISS
I've seen this crossword clue in The Times
B
L
I
S
S
More clues leading to the result BLISS
- Joy swept up contents of fossil bed
- Bishop pays attention — how many commandments omitted “Paradise”?
- British composer showing ecstatic joy
- Composer showing ignorance?
- One who scored ecstasy
- Old car firm – Mini designer starts there!
- Not even Bale is Wales’ last scorer
- Composer in heaven
- Wineleading to special ecstasy
- French wine, having tea out, close to religious ecstasy
Buddy explains!

The straight part
We know that "Joy" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case joy = bliss.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 BLISS mean?
BLISS noun- Perfect happiness