Crossword Clue:

A forerunner of something

Answer	Crossword Clue
USHERIN	Be a forerunner of
BOA	Forerunner of a stole.
PASTORALE	A forerunner of opera

PREDATES	Is a forerunner of
FLAIL	Forerunner of a threshing machine.
SNOW	Forerunner of a white Christmas.
OSS	Forerunner of C.I.A.
OSS	Forerunner of the C.I.A.