Crossword Clue:

Hard to remove stain

AnswerCrossword Clue
GRASSHard-to-remove stain
INKMARKHard-to-remove stain
STIGMATough-to-remove stain
ANACONDAWrapper that's hard to remove?
BOAWrapper that's hard to remove?
PINESAPTree residue that's hard to remove from hair