A weapon, we hear, went high in the sky (6)
I believe the answer is:
soared
'went high in the sky' 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?
'a weapon we hear' is the wordplay.
'a weapon' becomes 'sword' (sword is a kind of weapon).
'we hear' shows a homophone (sound like).
'sword' is a homophone of 'SOARED'.
Can you help me to learn more?
(Other definitions for soared that I've seen before include "Rose high in flight like bird" , "Flew upwards or high in the sky" , "Rose high into the air" .)