Easter egg colorer (3)
I believe the answer is:
dye
'easter egg colorer' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for dye that I've seen before include "Colour (fabrics)" , "Colorant" , "Colouring agent" , "Colour or stain something" , "Hair colouring" .)