Has outburst over user taking pot off ring (6)
I believe the answer is:
erupts
'has' is the definition.
The definition and answer can be both related to change as well as being verbs in their -s form.
Maybe there's an association between them I don't understand?
'outburst over user taking pot off ring' is the wordplay.
I cannot quite see how this works, but
'over' could be 'up' (e.g. if your time is up it is over) and 'up' is located in the answer.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for erupts that I've seen before include "Blows up like volcano" , "Explodes" , "loses temper?" , "Bursts" , "Breaks out abruptly" .)