Strong drink stirred reaction, you heard (9)

I believe the answer is:

cointreau

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

'strong drink' is the definition.
'cointreau' can be an answer for 'drink' (type of liqueur). I'm not certain of the 'strong' bit.

'stirred reaction you heard' is the wordplay.
'stirred' indicates anagramming the letters.
'you heard' becomes 'U' (homophone of 'you').
'reaction' anagrammed gives 'cointrea'.
'cointrea'+'u'='COINTREAU'

Can you help me to learn more?

(Other definitions for cointreau that I've seen before include "Orange liqueur" , "Alcoholic drink" , "A sweet orange-flavoured liqueur for cautioner" , "Sweet orange-flavoured colourless liqueur" .)

I've seen this clue in The Times.

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