This drink is in smidgins lingering in the air (3-5)

I believe the answer is:

gin-sling

I'm a little stuck... Click here to teach me more about this clue!

'this drink' is the definition.
(gin sling is a kind of drink)

'in smidgins lingering in the air' is the wordplay.
'GIN SLING' is hidden within the letters.
But, I'm not sure how this is indicated.

'is' 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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