Stain, maybe Crossword Clue

 The answer to the crossword clue "Stain, maybe" is Dye. This is a substance that is used to change the color of something. It can be used to stain fabrics, wood, or other materials. The clue "Stain, maybe" is a bit of a pun, as dye can be used to create a stain, but it is not always used for that purpose.

Here are some other possible answers to the crossword clue "Stain, maybe":

Ink

Paint

Bleach

Marker

Rubber cement

However, the most likely answer is Dye, given the clue's specificity.

I hope this helps!