Answer: tattletale

AnswerCrossword Clue
TATTLETALEGossip.
tattletaleto tell tales
tattletaleA person, esp. a child, who reveals secrets or informs on others; a telltale
TATTLETALESquealer
TATTLETALEScorned kid brother, maybe
TATTLETALEToo-willing witness
TATTLETALE... gray (off-white)
TATTLETALEStool pigeon
TATTLETALEKindergarten stoolie
TATTLETALESchoolroom stoolie
TATTLETALEHe'll tell anything
TATTLETALETroublemaker, of a sort.
TATTLETALEBusybody's cousin.
TATTLETALEBig talker
TATTLETALEUnpopular informer.
TATTLETALEPlayground snitch
TATTLETALESnitcher
TATTLETALERat
TATTLETALEUnreliable kid
TATTLETALEYoung rat?
TATTLETALEBlabbermouth
TATTLETALEOne who gives things away
TATTLETALESnitch
TATTLETALERevealing
TATTLETALETry reading this!