Charges too much (9)
I believe the answer is:
overloads
'charges too much' is the definition.
The definition and answer can be both related to change as well as being verbs in their -s form.
Maybe they are linked in a way I don't understand?
'charges too much' is the wordplay.
I cannot quite understand how this works, but
'charges' could be 'loads' ('load' can be a synonym of 'charge') and 'loads' is present in the answer.
'too much' could be 'over' (over can mean to too great an extent) and 'over' is present in the answer.
This accounts for all the letters.
This explanation may well be incorrect...
Can you help me to learn more?
(Another definition for overloads that I've seen is " Excessive amounts".)