Clement Attlee cle·men·tatt·lee uncommon noun 1. British statesman and leader of the Labour party who instituted the welfare state in England (1883-1967) SynonymsAttleeClement AttleeClement Richard Attlee1st Earl Attlee Related words Broader terms statesman WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.