Liquor ghosts? (7)
I believe the answer is:
spirits
This clue is a double definition.
'liquor' is the first definition.
(synonyms)
'ghosts?' is the second definition.
(ghost is a kind of spirit)
(Other definitions for spirits that I've seen before include "Ghosts" , "whiskeys?" , "rum, say" , "eg Gin, whisky" , "Animating forces or hard liquors" .)