Liqueur prepared in tea set (8)
I believe the answer is:
anisette
'liqueur' is the definition.
(I know that anisette is a type of liqueur)
'prepared in tea set' is the wordplay.
'prepared' indicates an anagram.
'in'+'tea'+'set'='inteaset'
'inteaset' with letters rearranged gives 'ANISETTE'.
(Other definitions for anisette that I've seen before include "alcoholic drink" , "Liquorice-flavoured liqueur" , "Strong-flavoured liqueur" , "Type of highly-flavoured liqueur" , "Liqueur; tetanise (anag.)" .)