Finished with old flame mentioned, who's excessively emotional (11)
I believe the answer is:
overexcited
'excessively emotional' is the definition.
I can't judge whether this defines the answer.
'finished with old flame mentioned' is the wordplay.
'finished' becomes 'over' (over can mean finished or ended).
'with' means one lot of letters go next to another.
'old flame' becomes 'ex' (an ex-partner).
'mentioned' becomes 'cited' ('cite' can be a synonym of 'mention').
'over'+'ex'+'cited'='OVEREXCITED'
'who's' is the link.
Can you help me to learn more?
(Other definitions for overexcited that I've seen before include "too emotional" , "Excessively eager" .)