Disturbed very loudly, elephant's head moved about (8)
I believe the answer is:
affected
'disturbed very' is the definition.
The answer and definition can be both related to change as well as being past participle verbs.
Maybe they are linked in a way I don't understand?
'loudly elephant's head moved about' is the wordplay.
'loudly' becomes 'ff' (short for fortissimo - 'very loud' in music).
'head' says to take the initial letters.
'moved' becomes 'acted' ('act' can be a synonym of 'move').
'about' indicates putting letters inside.
The first letter of 'elephants' is 'e'.
'ff'+'e'='ffe'
'ffe' put within 'acted' is 'AFFECTED'.
Can you help me to learn more?
(Other definitions for affected that I've seen before include "Artificial of manner, pretentious" , "Pretentious; changed" , "attacked" , "Impacted on" , "False - unnatural" .)