Order editor around, making protest (4)
I believe the answer is:
demo
'protest' is the definition.
(demonstration)
'order editor around' is the wordplay.
'order' becomes 'om' (Order of Merit).
'editor' becomes 'ed' (abbreviation).
'around' says the letters should be written backwards.
'om'+'ed'='omed'
'omed' back-to-front is 'DEMO'.
'making' is the link.
(Other definitions for demo that I've seen before include "Eg, protest march" , "Show" , "illustration" , "Tape sent to recording studio" , "Protest march (sl.)" .)