The most common and most likely answer to this crossword clue is the 10 letter word CAPABILITY
I've seen this crossword clue in The Times
C
A
P
A
B
I
L
I
T
Y
More clues leading to the result CAPABILITY
- Potential sailor, one with typical scruffy clothing
- Brown’s competence as a gardener
- Brown primarily chosen as PM after Blair’s invasion levelled Iraq twice? Yes!
- Mr Brown’s potential
- A bit icy, pal – awkward for a gardener to show skill
- Brown, for example, is strangely typical – a bit not quite all there
- Brown’s competence in the garden
Buddy explains!

The straight part
We know that "Potential" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case potential = capability.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 CAPABILITY mean?
CAPABILITY noun- The power or ability to generate an outcome