The most common and most likely answer to this crossword clue is the 6 letter word VIABLE
I've seen this crossword clue in The Times
V
I
A
B
L
E
More clues leading to the result VIABLE
- Half-dozen in Rome with capacity to become realistic
- Woman with capacity to be realistic
- Sailor during offensive is likely to survive
- Sailor in base is capable of working
- Sailor trapped in offensive likely to survive
- Sailor put in base with potential for growth?
- Abridged volume I accomplished having potential to succeed
- Possible horrible environment for sailor
- Seaman in base? It’s feasible
- . Sailor drawn in by horrible sound
Buddy explains!

The straight part
We know that "is likely to survive" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case is likely to survive = viable.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 VIABLE mean?
VIABLE noun- An organism that is able to live and develop.
- Able to live on its own (as for a newborn).
- Able to be done, possible.
- Able to live and develop.