Appearance presented in association with rebel Jack (6)
I believe the answer is:
facade
'appearance' is the definition.
(I've seen this before)
'presented in association with rebel jack' is the wordplay.
'presented in association' becomes 'fa' (I can't justify this - if you can you should believe this answer much more).
'with' is a charade indicator (letters next to each other).
'rebel jack' becomes 'cade' (I've seen this in other clues).
'fa'+'cade'='FACADE'
Can you help me to learn more?
(Other definitions for facade that I've seen before include "Series of notes" , "External surface" , "ballet" , "(False) outward appearance" , "Building's front" .)