Not drinking after a dreadful experience with old liqueur (8)
I believe the answer is:
amaretto
'liqueur' is the definition.
(I've seen this before)
'not drinking after a dreadful experience with old' is the wordplay.
'not drinking' becomes 'tt' (short for teetotal).
'after' is a charade indicator (letters next to each other).
'dreadful experience' becomes 'mare' (I can't justify this - if you can you should believe this answer much more).
'with' means one lot of letters go next to another.
'old' becomes 'o' (abbreviation).
'a'+'mare'='amare'
'tt' after 'amare' is 'amarett'.
'amarett'+'o'='AMARETTO'
Can you help me to learn more?
(Other definitions for amaretto that I've seen before include "Ma, rotate the almond liqueur" , "Almond-flavoured liqueur" , "rink" , "Italian almond liqueur" , "drink" .)