Answer: eveners

AnswerCrossword Clue
EVENERSPlanes
EVENERSPlanes, for example
EVENERSHandicaps
EVENERSEqualizers.
EVENERSEqualizing devices.
EVENERSDoubletrees.
EVENERSTextile devices
EVENERSTextile-machine devices
EVENERSCarpenters' planes, e.g.
evenersto make even
evenersbecome even
evenersEVENER, one that evens (to make smooth or level)