Clarabelle rhymes with:
adorable, arable, bearable, corabelle, curable, demonstrable, deplorable, desirable, durable, execrable, horrible, impenetrable, incurable, marable, mirabal, mirabelle, nondurable, orabelle, parable, repairable, terrible, unbearable, undesirable, uninsurable, wearable
Clarabelle sounds like:
chlorophyll, claribel, colorful, colorfully