Made a comeback with a revolutionary song (7)
I believe the answer is:
replied
'made a comeback' is the definition.
The answer and definition can be both to do with communicating as well as being past participle verbs.
Perhaps there's an association between them I don't understand?
'with a revolutionary song' is the wordplay.
'with' is a charade indicator (letters next to each other).
'a' becomes 'per'.
'revolutionary' shows that the letters should be reversed in order.
'song' becomes 'lied' (lied is a kind of song**).
'per' in reverse letter order is 'rep'.
'rep' next to 'lied' is 'REPLIED'.
Can you help me to learn more?
(Other definitions for replied that I've seen before include "came back" , "Responded" , "Gave answer" , "Answered back" , "Wrote back" .)