Author and columnist Chloe Combi has said she had heard rumours that there were "real concerns" about David Walliams's behaviour within the publishing industry more than a decade ago.
Combi told BBC News she had heard there were allegations about his "behaviour around young female staff" and says she was told in 2015 to warn schools that he was "not an appropriate booking".
An investigation by the Guardian and ITV News alleged that Walliams has been accused by several women of sexual misconduct, inappropriate behaviour and abusing his position, which he denies.
HarperCollins, which published Walliams's best-selling children's books, have been asked for comment on Combi's claims.
In response to the Guardian and ITN report, a spokesperson for HarperCollins said the company had decided not to publish any new titles by Walliams and that it took "employee wellbeing extremely seriously".
Walliams told ITV News and the Guardian that he was "not a sexual predator" and had not "broken the law".
Combi said she was getting invited to events such as book launches around the time one of her own books was being published, and was also running a scheme to bring "high-profile and inspiring writers and speakers" to talk in schools.
At an event in 2015, Combi said she got speaking to someone "quite senior"