Laundry problems (6)
I believe the answer is:
stains
'laundry problems' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for stains that I've seen before include "Discolourations on satins" , "Discolorations or blemishes" , "Discolours or dyes wood" , "Black marks for saints" , "Sullies" .)