The term 'RED HEAD, ONCE' can be solved by two crossword solutions: Mao (3 letters) and Lenin (5 letters). Mao Zedong was a Chinese communist revolutionary who became the founding father of the People's Republic of China in 1949. He was also known as Chairman Mao. Vladimir Lenin was a Russian revolutionary, politician, and political theorist. He served as HEAD of government of Soviet Russia from 1917 to 1924 and of the Soviet Union from 1922 to 1924. He was the leader of the Bolshevik Revolution that overthrew the Tsarist autocracy and led to the establishment of the Soviet Union.