Nameless, strutting male model (8)
I believe the answer is:
paradigm
'model' is the definition.
(I know that paradigm is a type of model)
I can't explain the remainder of the clue.
Can you help me to learn more?
(Other definitions for paradigm that I've seen before include "Model or example for rapid agm" , "Conceptual framework - a map grid (anagram)" , "Epitome" , "Adam grip (anag.)" , "Prototype" .)