Initially serves up pleasant summer drinks (4)

I believe the answer is:

sups

'drinks' is the definition.
(I've seen this before)

'initially serves up pleasant summer' is the wordplay.
'initially' says to take the initial letters.
The initial letters of 'serves up pleasant summer' is 'SUPS'.

(Another definition for sups that I've seen is " Drinks".)

I've seen this clue in The Independent.

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