Like some elements second kind of star made available (10)

I believe the answer is:

monovalent

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'like some elements second kind of star made available' is the definition.
I can't tell whether this definition defines the answer.

'second kind of star made available' is the wordplay.
'second' becomes 'mo' (both are short periods of time).
'kind of star' becomes 'nova' (I've seen this in another clue).
'made available' becomes 'lent' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'mo'+'nova'+'lent'='MONOVALENT'

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I've seen this clue in The Guardian.

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