Son concocted great Italian liqueur (6)

I believe the answer is:

strega

'italian liqueur' is the definition.
(I've seen this in another clue)

'son concocted great' is the wordplay.
'son' becomes 's' (genealogical abbreviation for son).
'concocted' indicates anagramming the letters.
'great' is an anagram of 'trega'.
's'+'trega'='STREGA'

(Another definition for strega that I've seen is " Greats (anag) - Italian liqueur".)

I've seen this clue in The Independent.

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