Answer: windshieldwiper

AnswerCrossword Clue
WINDSHIELDWIPERVisibility improver in the rain
WINDSHIELDWIPERIt may make a squeaking noise
WINDSHIELDWIPERCar mechanism
WINDSHIELDWIPERVisual aid.
WINDSHIELDWIPERRain check?
WINDSHIELDWIPERDriving convenience created by Mary Anderson (1866-1953)
WINDSHIELDWIPERCertain visibility improver
WINDSHIELDWIPERGlass cleaner