Kathleen Massara, in flavorwire.com, lists the 10 most notorious literary spats. At #4 we find Walcott vs Naipaul. Follow the link below for the other 9:

In his book, A Writer’s People, Naipaul wrote that Walcott “went stale,” and “exhausted the first flush of his talent.” Walcott then wrote “The Mongoose,” a poem about Naipaul, which begins: “I have been bitten, I must avoid infection/Or else I’ll be as dead as Naipaul’s fiction.” A later part asserts: “The plots are forced, the prose sedate and silly/The anti-hero is a prick named Willie.”

For the original report go to http://flavorwire.com/183467/10-notorious-literary-spats/4