Answer:

rat

AnswerCrossword Clue
RAT"King .." (Clavell novel)
RAT"King ..." or "Brother ..."
RATDeserter
RATKind of race
RATRace beginning?
RATSinking ship deserter
RATSqueal
RATSquealer
RATA-mazing animal?
RATBe a canary
RATInformer
RATSinatra's "Pack"
RATSneaky person
RATTattle-tale
RATFink (on)
RATTattler
RATBlow the whistle
RATCellar dweller
RATUrban critter
RATCertain pet, I guess, if you're a person who makes bad choices
RATTattle
RATInform (on)
RATStoolie
RATSnitch
RATJailhouse singer?
RATTempleton, in Charlotte's Web
RATFink
RATScoundrel
RATDespicable singer?
RATPixar's Remy, e.g.
RATBean spiller?
RATAlley creature
RATTest animal
RATBetrayer
RATBlackguard
RATLaboratory testee
RATDisloyal one
RATBack stabber
RATNo-goodnik
RATChinese zodiac animal