Shelvey currently represents England at U21 and U19 level but could choose to swap allegiances thanks to his Scottish grandfather.
"From a Scottish point of view, we're a smaller country and we need to get as much talent as we can," Clarke told liverpoolfc.tv.
"If Craig has identified Jonjo as a potential target then I think that's good for Scotland and it might be good for Jonjo, but obviously it's up to Jonjo to decide.
"He certainly hasn't got much of a Scottish accent!
"He comes back here on a regular basis so next time he's down I might have a quiet word in his ear, but it's for him to make that decision.
"He's already represented England at U21 level and maybe he feels more comfortable in a white shirt rather than dark blue."