Liqueur, like punch, over after a month (10)
I believe the answer is:
maraschino
'liqueur' is the definition.
(I know that Maraschino is a type of liqueur)
'like punch over after a month' is the wordplay.
'like' becomes 'as'.
'punch over' becomes 'chino' (I am not sure about this - if you are sure you should believe this answer much more).
'after' is a charade indicator (letters next to each other).
'a month' becomes 'Mar' (short for March).
'as'+'chino'='aschino'
'aschino' after 'mar' is 'MARASCHINO'.
Can you help me to learn more?
(Another definition for maraschino that I've seen is " Harmonicas (anag) - cherry liqueur".)