Space gets finished, then adjusted (7)
I believe the answer is:
emended
'then adjusted' is the definition.
The definition and answer can be both related to change as well as being past participle verbs.
Maybe you can see a link between them that I can't see?
'space gets finished' is the wordplay.
'space' becomes 'em' (in typography, a space as wide as a letter 'm').
'gets' is a charade indicator (letters next to each other).
'finished' becomes 'ended' ('end' can be a synonym of 'finish').
'em'+'ended'='EMENDED'
Can you help me to learn more?
(Other definitions for emended that I've seen before include "Corrected, revised (a text)" , "Edited" , "did some editing" , "Altered" , "Acted like editors" .)