Who's ordering 'redo it!' (6)
I believe the answer is:
editor
'who's' is the definition.
Although both the answer and definition are singular nouns, I can't understand how they can define each other.
'ordering redo it' is the wordplay.
'ordering' indicates an anagram.
'redo'+'it'='redoit'
'redoit' is an anagram of 'EDITOR'.
Can you help me to learn more?
(Other definitions for editor that I've seen before include "Newspaper executive" , "Paper head" , "Director of 3 down" , "Journalist - rioted (anag)" , "Cudlipp, for one" .)