Soils satins, perhaps (6)
I believe the answer is:
stains
'soils' is the definition.
(I know this)
'satins perhaps' is the wordplay.
'perhaps' is an anagram indicator.
'satins' with letters rearranged gives 'STAINS'.
(Other definitions for stains that I've seen before include "Discolorations or dirt marks" , "Discolorations on satins" , "Dirty marks" , "Sullies" , "Discolourations on satins" .)