Synonym des acts as an informer

squeals snitches informs grasses informs on peaches shops sings rats rats on reports sneaks betrays informs against tells tales blabs fingers finks gives away grasses on sells out sneaks on splits splits on squeaks talks peaches on pools snitches on stitches up tells tales on blows the whistle finks on rats out sells down the river stabs in the back tattles tells tells all tells on blows the whistle on dobs in pimps on puts the finger on spills the beans blows the gaff spills your guts drops a dime on drops the dime on sells someone down the river

acts as an intermediary acts as a peacemaker acts as arbiter acts as arbitrator acts as a spur to acts as a stimulus to acts as a missionary acts as a mediator acts as a incentive to acts as a impetus to acts as a guarantor for acts as a fillip to