Possible Clues:

• Go and back the editor up a bit
• Outwardly deplore theatrical role and leave
• It's just no go for the editor to be back a bit
• Go east and plunge head in river
• Garden party could make you angry and this!
• Leave a bit to the last
• Retire from race after defending record
• What the last words of eight key answers in this puzzle are slangy synonyms of
• Beat it
• Get going