Egg-based liqueur (8)
I believe the answer is:
advocaat
'egg-based liqueur' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for advocaat that I've seen before include "Liqueur containing raw eggs" , "Liqueur (for lawyers?)" , "Liquer of eggs, sugar and brandy" , "Egg-based liqueur" , "Egg and rum drink" .)