Here are the possible solutions for aim improving device clue
Answer
Clue
Relevancy
scope
Clue
Aim-improving device
ioniser
Clue
Device for improving air quality —noisier (anag)
Definition
something that ionizes, also IONIZER
laser
Clue
Vision-improving device
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
additionbysubtraction
Clue
Strategy for improving a business through downsizing ... and a literal description of the letters dropped from this puzzle's businesses
