Inciting rebellion, no small issue (7)
I believe the answer is:
edition
'issue' is the definition.
(edition is a kind of issue)
'inciting rebellion no small' is the wordplay.
'inciting rebellion' becomes 'sedition' (sedition is activity inciting rebellion or revolt).
'no' is a deletion indicator.
'small' becomes 's' (abbreviation - e.g. clothes size).
'sedition' with 's' removed is 'EDITION'.
(Other definitions for edition that I've seen before include "One version of a published text" , "Issue of a book" , "in printed form" , "single programme" , "Version of a publication" .)