A nozzle evolved (5)
I believe the answer is:
arose
'evolved' 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?
'a nozzle' is the wordplay.
'nozzle' becomes 'rose' (I have seen 'Perforated nozzle' mean 'rose' so perhaps 'nozzle' could also mean 'rose').
'a'+'rose'='AROSE'
Can you help me to learn more?
(Other definitions for arose that I've seen before include "Became apparent" , "Came about" , "''. ... by any other name would smell as sweet'' (Romeo and Juliet)" , "Sprang up" , "appeared" .)