Weekend speculation linked the Tipperary native with a switch to Anfield and a link-up with his former manager at Reading, Brendan Rodgers, although Long actually struggled when the Northern Irishman was in charge at the Madejski Stadium.
Clarke has claimed that the speculation is merely the work of a creative mind rather than based on any substance
"For me, it's lazy journalism," he said. "Liverpool need a striker and Shane is playing well so a journalist has put it together and tried to make a story out of it. Shane is not for sale and I'd be very surprised if Brendan Rodgers wanted to take Shane."
Despite the Scot's certainty that the 25-year-old will be going nowhere, it is believed that Long's exploits have caught the eye of some bigger fish.
Spurs boss Andre Villas-Boas is an admirer of the front man, with reports suggesting he is plotting a New Year move.
Long joined the Baggies for a fee in excess of £6m in the summer of 2011 and after an injury-interrupted first season, he has shone this term and played a central role in their rise to fifth place in the table.