Booze on the "Bounty" (4)
I believe the answer is:
grog
'booze on the bounty' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for grog that I've seen before include "Rum mixed with water" , "Booze" , "Traditional naval drink" , "Naval rum issue" , "Old sailors' tipple" .)