The most common and most likely answer to this crossword clue is the 8 letter word BEATIFIC
I've seen this crossword clue in Financial Times
B
E
A
T
I
F
I
C
More clues leading to the result BEATIFIC
- Blissful course regularly taken by one female in charge
- Saintly rhythm provided in concert to begin with
- Attend primarily idealistic festival in California, getting blissed out
- Unhappily citified beast forgetting It’s De-Lovely
- Exist as a fantastic sin-avoiding divine
- Blissful round for a copper, if in charge
- Joyful whip provided by sick heart
- Heavenly course provided I take coffee at first
- Hit provided one with century, expressing supreme happiness
- Batter’s condition, when on 99? Happy!
Buddy explains!

The straight part
We know that "Saintly" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case saintly = beatific.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 BEATIFIC mean?
BEATIFIC adjective- Blessed, blissful, heavenly
- Having a benign appearance