Clause 4

Từ điển Oxford Advanced Learner 8th

Clause 4 [Clause 4] BrE NAmE
(in Britain) a part of the original ↑constitution of the ↑Labour Party. It states that the Party will try to increase the number of nationalized industries. Many members of the Labour Party no longer believe this is a good idea, but others were angry when it was dropped in 1994.