The possibility of holding a number with skill (10)

I believe the answer is:

tenability

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'the possibility of' is the definition.
The definition suggests a singular noun which matches the answer.

'a number with skill' is the wordplay.
'a number' becomes 'ten' (ten is a number).
'with' is a charade indicator (letters next to each other).
'skill' becomes 'ability' (I've seen this before).
'ten'+'ability'='TENABILITY'

'holding' acts as a link.

Can you help me to learn more?

I've seen this clue in The Irish News.

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