Went overseas, largely put out and vexed (9)
I believe the answer is:
emigrated
'went overseas' 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 don't see?
'largely put out and vexed' is the wordplay.
'largely' means to remove the last letter (most but not all of the letters).
'put out' becomes 'emit' (I've seen this in another clue).
'and' is a charade indicator (letters next to each other).
'vexed' becomes 'grated' (grating is a kind of vexing).
'emit' with its final letter removed is 'emi'.
'emi'+'grated'='EMIGRATED'
Can you help me to learn more?
(Other definitions for emigrated that I've seen before include "Moved abroad" , "Went abroad to live" , "moved overseas" , "gone away?" .)