20 down
Boss
to
drink
more
rum
(7)
Boss to drink more rum (7)
hints
0
checks
0
hints
The definition is at the beginning of the clue.
How the clue works
So Boss here means a supreme leader. You get SUP from "to drink", then "rum" tells you to jumble up "more" into REMO. Stick them together and there's your answer.