Eau-claire rhymes with:
auclair, boisclair, clair, claire, clare, declare, gisclair, klare, leclaire, montclair, sinclair, stclair, st_clair, st_claire, trosclair
Eau-claire sounds like:
easler, eckler, ecolaire, egeler, egler, eichler, eisler, eissler, escalera, esler, exler