Answer: stainers

AnswerCrossword Clue
STAINERSDye appliers
STAINERSFurniture workers
STAINERSFurniture colorers, perhaps
STAINERSPainters of furniture.
STAINERSSome woodworkers
STAINERSInk, mustard, lipstick, etc.
STAINERSThey're dyeing for a job
stainersSTAINER, that which stains