Alcoholic drink is cradled by server, uncorked? (6)
I believe the answer is:
poison
'alcoholic drink' is the definition.
(What's your poison?)
'is cradled by server uncorked?' is the wordplay.
'cradled by' means one lot of letters goes inside another.
'server' becomes 'spoon'.
'uncorked?' means to remove the first letter (with top taken off).
'spoon' with its first letter taken away is 'poon'.
'is' going within 'poon' is 'POISON'.
(Other definitions for poison that I've seen before include "It causes illness or death in a living organism" , "If taken, it can harm or kill" , "Deadly substance" , "Venom, toxin" , "Venom, harmful substance" .)