None remain, I see; it’s said it can’t be stretched out (10)

I believe the answer is:

nonelastic

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'said it can't be stretched out' is the definition.
I can't judge whether this definition defines the answer.

'none remain i see' is the wordplay.
'remain' becomes 'last' (I've seen this in another clue).
'see' becomes 'C' (the word for the letter, according to Chambers).
'none'+'last'+'i'+'c'='NONELASTIC'

'it's' acts as a link.

Can you help me to learn more?

I've seen this clue in the Sydney Morning Herald.

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