Cretin I kicked ten bells out of is a troll, perhaps (7)
I believe the answer is:
inciter
'troll perhaps' is the definition.
The answer and definition can be both people as well as being singular nouns.
Perhaps they are linked in a way I don't understand?
'cretin i kicked ten bells out of' is the wordplay.
'cretin i' anagrams to 'INCITER'.
But, I'm not clear how the anagram is indicated.
'is a' is the link.
Can you help me to learn more?
(Other definitions for inciter that I've seen before include "provoking fellow" , "instigator of action" , "who might supply Spark?" , "He encourages" .)