Convertible used lane that's not closed (8)

I believe the answer is:

unsealed

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'not closed' is the definition.
The definition and answer can be both to do with contact as well as being past participle verbs.
Perhaps you can see an association between them that I don't see?

'convertible used lane' is the wordplay.
'convertible' indicates anagramming the letters.
'used'+'lane'='usedlane'
'usedlane' with letters rearranged gives 'UNSEALED'.

'that's' acts as a link.

Can you help me to learn more?

(Another definition for unsealed that I've seen is " Open".)

I've seen this clue in The Times.

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