Takes a little drink (4)

I believe the answer is:

sips

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

'drink' is the definition.
(I know this)

I don't understand how the rest of the clue works.

(Other definitions for sips that I've seen before include "Takes small mouthfuls" , "Drinks slowly" .)

I've seen this clue in the Evening Standard.

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