Here are the possible solutions for aid in correcting one's mistakes clue
Answer
Clue
Relevancy
eraser
Clue
Aid in correcting one's mistakes
Correcting aid
Definition
one that erases
laser
Clue
Vision-correcting aid
Definition
a source of high-intensity optical, infrared, or ultraviolet radiation produced as a result of stimulated emission maintained within a solid, liquid, or gaseous medium
autotune
Clue
Pitch-correcting audio processor
Definition
a software package that manipulates a vocal track until it is in tune
