Blemish
'blemish' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for taint that I've seen before include "Flaw in Titan" , "black mark" , "Adulterate" , "Defect - contamination" , "Defile" .)
'blemish' is the definition.
(stain is a kind of blemish)
This is the entire clue.
(Other definitions for stain that I've seen before include "Mark with colour, dirt" , "Taint" , "Tarnish" , "Satin (anag.)" , "Blemish; colour (wood)" .)
'blemish' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for fault that I've seen before include "Defect or offence" , "Sin, error" , "Censure" , "Flaw - defect" , "Shortcoming" .)
'blemish' is the definition.
(I know that scar is a type of blemish)
This is all the clue.
(Other definitions for scar that I've seen before include "Injury mark - cliff" , "Mark of old injury" , "Bare rocky cliff - injury" , "Permanent mark left by a wound" , "Sign of wound" .)
'blemish' is the definition.
(I know that spot is a type of blemish)
This is all the clue.
(Other definitions for spot that I've seen before include "Small round mark" , "Pickle" , "Pimple; place" , "clock" , "Notice, see" .)
'blemish' is the definition.
(I know that blot is a type of blemish)
This is all the clue.
(Other definitions for blot that I've seen before include "Dry piece of writing" , "bad mark" , "Dark mark/stain" , "stain on reputation" , "Stain (on one's character?)" .)
'blemish' is the definition.
(I know that blemish can be written as flaw)
This is all the clue.
(Other definitions for flaw that I've seen before include "Fault, blemish" , "sudden rush" , "weak spot" , "Weakness" , "failing" .)
'blemish' is the definition.
(I know that mark is a type of blemish)
This is all the clue.
(Other definitions for mark that I've seen before include "Former German currency" , "Spot - score - target" , "Note - evangelist" , "Take note of" , "What one might have paid old German" .)
'blemish' is the definition.
(I know that blemish is a more specific form of mar)
This is the entire clue.
(Other definitions for mar that I've seen before include "A windy month" , "'Impair, spoil (3)'" , "wreck" , "hurt" , "Spanish main?" .)