Strong drink when harmonicas playing (10)

I believe the answer is:

maraschino

'strong drink' is the definition.
(maraschino is a kind of strong drink)

'harmonicas playing' is the wordplay.
'playing' is an anagram indicator.
'harmonicas' is an anagram of 'MARASCHINO'.

'when' acts as a link.

(Another definition for maraschino that I've seen is " Harmonicas (anag) - cherry liqueur".)

I've seen this clue in The Everyman puzzle in The Observer.

Want a hint initially instead of a full solution? Install my app