Tricked into side issues (8)
I believe the answer is:
editions
'issues' is the definition.
(edition is a kind of issue)
'tricked into side' is the wordplay.
'tricked' indicates anagramming the letters (I've seen this in other clues).
'into'+'side'='intoside'
'intoside' is an anagram of 'EDITIONS'.
(Other definitions for editions that I've seen before include "Numbers" , "Book published at different times" , "Impressions given!" , "Repros" , "Copies of book about sedition" .)