Divided and cut up stem on daffodil, primarily (9)
I believe the answer is:
polarised
'divided' is the definition.
Both the definition and answer are past participle verbs.
Maybe you can see an association between them that I can't see?
'cut up stem on daffodil primarily' is the wordplay.
I cannot quite see how this works, but
'stem' could be 'arise' (I've seen this in another clue) and 'arise' is present in the answer.
This explanation may well be incorrect...
'and' is the link.
Can you help me to learn more?
(Other definitions for polarised that I've seen before include "camps that are opposite?" , "in opposing camps" , "Extremely divided" , "like some light" , "Separate" .)