Sid, upset about someone being given out (6)
I believe the answer is:
issued
'given out' is the definition.
The definition and answer can be both related to change as well as being past participle verbs.
Maybe there's a link between them I don't understand?
'sid upset about someone' is the wordplay.
'upset' indicates an anagram.
'about' means one lot of letters goes inside another.
'someone' becomes 'sue' (I can't justify this - if you can you should believe this answer much more).
'sid' anagrammed gives 'isd'.
'isd' going around 'sue' is 'ISSUED'.
'being' is the link.
Can you help me to learn more?
(Other definitions for issued that I've seen before include "Put out (a publication)" , "Distributed - came forth" , "released" , "Turned out" , "Circulated, a statement perhaps" .)