the mind > attention and judgement > contempt > disrepute > damage to reputation > sullying or staining of reputation > [noun] > one who sullies or stains
blottera1631
stainer1647
blurrer1681
tar-brusher1884
smircher1888
smearer1955
smear merchant1963
smear-monger1967
1963 Times 15 May 9/2 The finding on this point was a bitter disappointment to the smear merchants.