Clare are in must win territory in the defence of their All Ireland hurling title.
A 2-23 to 0-21 loss against Waterford means the Banner have just one point on the board from their opening two games in the round robin series.
Up next is a showdown with Tipperary on Saturday May 10th at Zimmer Biomet Pairc Chiosiog, with both sides needing a win to keep their season alive.
Clare were without captain Tony Kelly through illness for the Deise defeat, and while Banner boss Brian Lohan had questions over the awarding of a penalty to Waterford, he admitted his side could have no complaints overall.
Elsewhere in the Munster championship, Cork moved top of the standings with a comfortable win over Tipperary

