One's opportunity to change? (4)
I believe the answer is:
turn
This clue might be a double definition.
'one's opportunity' is the first definition.
'turn' can be an answer for 'opportunity' (thesaurus). I am not sure about the 'one's' bit.
'change?' is the second definition.
(I know that turn is a type of development)
'to' is the link.
Can you help me to learn more?
(Other definitions for turn that I've seen before include "(Of tide) change from flood to ebb" , "Revolution by runt" , "rotation" , "Shift - wheel - round" , "Shape (using a lathe)" .)