Fragmented particle the lecturer's introduced (8)
I believe the answer is:
shivered
'introduced' is the definition.
The definition and answer can be both to do with motion as well as being past participle verbs.
Perhaps there's a link between them I don't understand?
I don't understand the remainder of the clue.
Can you help me to learn more?
(Other definitions for shivered that I've seen before include "'Trembled, with cold or fear (8)'" , "showed signs of cold" , "Shook" , "Trembled, with cold say" .)