Show edict in a new way (8)
I believe the answer is:
indicate
'show' is the definition.
(I know that show is a more specific form of show)
'edict in a new way' is the wordplay.
'new way' indicates an anagram.
'edict'+'in'+'a'='edictina'
'edictina' with letters rearranged gives 'INDICATE'.
(Other definitions for indicate that I've seen before include "Point out, make known" , "Make a signal" , "Point, show, signal" , "(Give a) signal" , "Point out, suggest" .)