Answer:

gamest

Answer	Crossword Clue
GAMEST	Most plucky
GAMEST	Most enthusiastic
GAMEST	Having the most grit

GAMEST	Most intrepid
GAMEST	Most resolute.
GAMEST	Most spirited.
GAMEST	Most courageous.
GAMEST	Most halt
GAMEST	Most willing
GAMEST	Most adventurous
GAMEST	Most spirited

GAMEST	Most ready for absolutely anything
GAMEST	Most spunky