Crossword Clue:

an expert in karate

Answer	Crossword Clue
MASTERED	Became an expert in
MASTER	Become an expert in
MYTHOLOGIST	An expert in gods

ADEPTLY	In an expert way.
ADEPTLY	In an expert way
EXCELAT	Be an expert in
ARABIST	Expert in an ancient language.
MOLOTOV	He's an expert in logomachy.
ENSIGNOFTHEZODIAC	Naval officer who's an expert in astrology?
SOCIALSTUDIES	"I hang out with my friends all the time, so I must be an expert in ..."