Given new perspective, therefore nods after reconsideration (13)
I believe the answer is:
foreshortened
'given new perspective' is the definition.
The answer and definition can be both related to change as well as being past participle verbs.
Perhaps you can see an association between them that I don't see?
'therefore nods after reconsideration' is the wordplay.
'therefore nods' anagrams to 'FORESHORTENED'.
Though, I'm not sure how the anagram is indicated.
Can you help me to learn more?
(Another definition for foreshortened that I've seen is " Reduced in perspective".)