Here are the possible solutions for correcting aid clue
Answer
Clue
Relevancy
eraser
Clue
Correcting aid
Aid in correcting one's mistakes
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
