Bullying prince in first grade (8)
I believe the answer is:
'bullying prince' is the definition.
The definition and answer can be both to do with human feelings as well as being present participle verbs.
Maybe they are linked in a way I don't understand?
'in first grade' is the wordplay.
I cannot really understand how this works, but
'in' is found in the answer.
'first' could be 'a' (first letter of the alphabet) and 'a' is located in the answer.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Another definition for harrying that I've seen is " Persistently harassing".)