Edit makes cardinal turn? (6)
I believe the answer is:
redact
'edit' is the definition.
(I know that edit can be written as redact)
'cardinal turn?' is the wordplay.
'cardinal' becomes 'red' (I've seen this in another clue).
'turn?' becomes 'act' (theatre).
'red'+'act'='REDACT'
'makes' is the link.
(Other definitions for redact that I've seen before include "Prepare for publication" , "Edit and censor" , "Traced badly to edit" , "Prepare to publish" , "Edit for publication" .)