Answer: watchdog

AnswerCrossword Clue
WATCHDOGGuardian.
watchdogA person or group whose function is to monitor the practices of companies providing a particular service or utility
watchdogA dog kept to guard private property
watchdogto act as a guardian for
WATCHDOGOSHA or the F.C.C.
WATCHDOGDoberman e.g.
WATCHDOGFurry guard
WATCHDOGRalph Nader, notably
WATCHDOGCerberus.
WATCHDOGProtective pooch
WATCHDOGAlert guardian.
WATCHDOGAlert custodian.
WATCHDOGSnarling sentry
WATCHDOGConsumer advocate
WATCHDOGConsumer protector
WATCHDOGGuardian
WATCHDOGBurglar alarm alternative
WATCHDOGDefense against intruders