Lecturer, appeased after late start, took action (9)
I believe the answer is:
litigated
'took action' is the definition.
The answer and definition can be both to do with social activities as well as being past participle verbs.
Maybe there's a link between them I don't understand?
I cannot understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for litigated that I've seen before include "Took legal action" , "Went to court" .)