One ridiculing another drink served by barista, audibly? (6)

I believe the answer is:

mocker

'one ridiculing another' is the definition.
(someone who mocks others)

'drink served by barista audibly?' is the wordplay.
'drink served by barista' becomes 'mocha' (coffee-based drink).
'audibly?' shows a homophone (sound like) (I've seen 'audibly' mean this).
'mocha' is a homophone of 'MOCKER'.

(Another definition for mocker that I've seen is " One who scorns".)

I've seen this clue in The Guardian.

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