From 1935 he was Minister for Local Government, Secretary for Public Works and deputy leader of the United Australia Party (NSW Branch).

[5] The coalition had a large majority in the assembly, however the motion was passed 43 to 41, with nine United Australia members joining Spooner in voting against the government.

[1][6][7] As the NSW Minister for Local Government, Spooner introduced an ordinance, commencing on 1 September 1935, regulating the design of swimsuits, principally aimed at males who were wearing swim trunks which left their chests bare.

[8] The lowering of the upper part of a costume to show a bared chest was considered by some people, including the Bega branch of the Country Women's Association, as "disgraceful, and [meriting] rigorous attention".

In June 1941, he was appointed Minister for War Organisation of Industry in the third Menzies Ministry, a position he retained until the fall of the Fadden government in October 1941.