The most common and most likely answer to this crossword clue is the 10 letter word FINGERNAIL
I've seen this crossword clue in The Guardian
F
I
N
G
E
R
N
A
I
L
More clues leading to the result FINGERNAIL
- Repeatedly in fear? Thing will ultimately get chewed
- It’s partly digital if learning, or life, rang in exchange
- Indicate guilt and then establish it in digital attachment
- It’s on hand, providing quick coverage
- Identify secure digital connection
- Manipulate PIN for digital protection
- Organised filing near item for filing?
- One on hand, if learning is disrupted
- Government’s in better nick, providing digital coverage?
- Touch small metal spike, one of a few we have to hand
Buddy explains!

The straight part
We know that "One on hand" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case one on hand = fingernail.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 FINGERNAIL mean?
FINGERNAIL noun- The hard, flat translucent covering near the tip of a human finger, useful for scratching and fine manipulation.