The most common and most likely answer to this crossword clue is the 8 letter word FEASIBLE
I've seen this crossword clue in The Guardian
F
E
A
S
I
B
L
E
More clues leading to the result FEASIBLE
- A belief in reform around Sweden is likely
- After refurbishment, see if lab is workable
- It’s possible a belief’s been shaken
- An idea if seal be broken
- It’s possible a belief’s being shaken
- See if lab hybrid is likely to work
- Changing belief around when possible
- Possible outcome of base life
- Feel bias of some sort? It’s possible
- Changing a belief’s possible
Buddy explains!

The straight part
We know that "possible" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case possible = feasible.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 FEASIBLE mean?
FEASIBLE adjective- Able to be done in practice.