Spiteful chap that is stalking Norm (6)
I believe the answer is:
meanie
'spiteful chap' is the definition.
The answer and definition can be both people as well as being singular nouns.
Perhaps you can see a link between them that I don't see?
'that is stalking norm' is the wordplay.
I cannot quite understand how this works, but
'norm' could be 'mean' (mean is a kind of norm) and 'mean' is present in the answer.
'that is' could be 'ie' (abbreviation for id est, 'that is' in Latin) and 'ie' is found in the answer.
This accounts for all the letters.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for meanie that I've seen before include "Small-minded type" , "Stingy person (informal)" , "Unkind person (informal)" , "spiteful person" , "Nasty piece of work?" .)