Mao dirge changed Chinese character? (8)
I believe the answer is:
ideogram
'chinese character?' is the definition.
(I've seen this before)
'mao dirge changed' is the wordplay.
'changed' indicates an anagram.
'mao'+'dirge'='maodirge'
'maodirge' anagrammed gives 'IDEOGRAM'.
(Other definitions for ideogram that I've seen before include "Symbol indicating idea of a thing, like number" , "E.g. numeral, Chinese character" , "Written character symbolising a concept or the thing itself" , "Symbolic character" , "Symbol indicating idea, like road sign" .)