Writes in code to an anarchic group from the East (7)
I believe the answer is:
notates
'writes in code' is the definition.
I don't know anything about this answer so I cannot tell whether this works.
'to an anarchic group from the east' is the wordplay.
'anarchic' is an anagram indicator.
'group' becomes 'set' (both can mean a collection).
'from the east' says the letters should be written backwards.
'set' reversed gives 'tes'.
'to'+'an'='toan'
'toan' with letters rearranged gives 'nota'.
'nota'+'tes'='NOTATES'
Can you help me to learn more?
(Other definitions for notates that I've seen before include "records" , "writes music" , "Writes, eg, musical symbols" .)