Red Guard leader (3)
I believe the answer is:
mao
'red guard leader' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for mao that I've seen before include "The familiar Tse-Tung" , "Former Chinese leader" , "Chinese statesman" , "Old Chinese "Chairman"" , "- Zedong, Chinese communist leader" .)