Unveils rump beef, topped in liquor (9)
I believe the answer is:
moonshine
'liquor' is the definition.
(I know that moonshine is a type of liquor)
'unveils rump beef topped' is the wordplay.
'unveils rump' becomes 'moons' (I can't justify this - if you can you should believe this answer much more).
'beef' becomes 'whine' (I've seen this in another clue).
'topped' means to remove the first letter (to top something is to remove its top).
'whine' with its first letter removed is 'hine'.
'moons'+'hine'='MOONSHINE'
'in' is the link.
Can you help me to learn more?
(Other definitions for moonshine that I've seen before include "Light in the still of the night" , "Smuggled alcohol" , "dodgy booze" , "hard stuff" , "Illicit spirits" .)