One editor's requirement (4)
I believe the answer is:
need
'requirement' is the definition.
(synonyms)
'one editor's' is the wordplay.
'NEED' is hidden within the letters.
But, I'm unsure how this is indicated.
Can you help me to learn more?
(Other definitions for need that I've seen before include "Require; want" , "Exigency" , "Want - poverty" , "Lack or require" , "''A friend in .... is a friend indeed''" .)