Bully I'd found in buddy (10)
I believe the answer is:
intimidate
'bully' is the definition.
(I've seen this before)
'i'd found in buddy' is the wordplay.
'found in' means one lot of letters goes inside another.
'buddy' becomes 'intimate' (intimate can be a noun: a close friend).
'id' put inside 'intimate' is 'INTIMIDATE'.
(Other definitions for intimidate that I've seen before include "Scare" , "Cow" , "Frighten" , "Bully" , "Strike fear into" .)