Crossword Clue:

to become an expert in

Answer	Crossword Clue
MASTER	Become an expert in
OUGHTAKNOW	"You ..!" (response to an expert)
OCS	Where to become an off.

CATCHIER	More likely to become an earworm
ATE	Prepared to become an NFL lineman
ATE	Prepared to become an NFL lineman?
MANAGEMENTBUYIN	It allows a boss to become an owner
ASTRONOMER	A student hoping to become an ... took a short-answer test...
WRISTS	Body parts that become other body parts if you change the second letter to an A
RIAL	Currency whose name can become its country's name by changing its last letter to an N and scrambling