Offended, having been expelled (3,3)
I believe the answer is:
put out
'offended' is the definition.
(I've seen this before)
'been expelled' is the wordplay.
'been' becomes 'put' (I can't justify this - if you can you should believe this answer much more).
'expelled' becomes 'out' (I've seen this in another clue).
'put'+'out'='PUT-OUT'
'having' acts as a link.
Can you help me to learn more?
(Other definitions for put out that I've seen before include "annoyed" , "Broadcast - angered" , "Offended; like cat at night?" , "Group leader" , "Extinguished" .)