Possible Clues:

• It's used for cleaning the bottom of fabric and dirty poster
• Work by English rector in charge of sheets?
• Undesirable poster under cloth and paper in can
• You may well tear a strip off this delinquent till looter
• Internet abuser after material -- one means to scrape the bottom
• Paper material a nuisance to Internet users
• Tissue paper, material for dress produced by mythical being
• Left loo with litter scattered, something pointed out in hotel bathroom
• Paper in circulation that won't get read!
• Sort of paper sees giants of literature and fantasy going head to head