Excessively admired sweetheart, not the first to get told off (9)
I believe the answer is:
overrated
'sweetheart not the first to get told off' is the definition.
I can't tell whether this definition defines the answer.
'excessively admired' is the wordplay.
'excessively' becomes 'over'.
'admired' becomes 'rated' (I've seen this before).
'over'+'rated'='OVERRATED'
Can you help me to learn more?
(Other definitions for overrated that I've seen before include "Valued too highly, not as good as believed to be" , "Too highly esteemed" , "Thought too highly of" , "Given excessive merit" .)