17 across
Bounty
boarded
by
a
mutineer
finally,
astern
(8)
Bounty boarded by a mutineer finally, astern (8)
hints
0
checks
0
hints
The definition is at the end of the clue.
How the clue works
astern is the definition. Take REWARD meaning "Bounty" and insert into it A (from the clue) plus R (the final letter of "mutineeR"), giving RE-A-R-WARD.