The most common and most likely answer to this crossword clue is the 8 letter word PROBABLE
I've seen this crossword clue in The Guardian
P
R
O
B
A
B
L
E
More clues leading to the result PROBABLE
- Likely for highly attractive sort to pick up student
- Infant only briefly to be kept by poor labourer? It’s likely
- Likely to investigate outside new lab
- Likely to happen when Pearl and Bob break up
- Likely corrupt lab is covered by investigation
- Expected expert with small child to get left inside
- No amateur, Welsh footballer pockets first of bonuses? That’s likely
Buddy explains!

The straight part
We know that "Likely" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case likely = probable.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 PROBABLE mean?
PROBABLE noun- Something that is likely.
- A person who is likely to appear or do a certain thing.
- Likely or most likely to be true.
- Likely to happen.
- Supporting, or giving ground for, belief, but not demonstrating.
- Capable of being proved.