Unknown, head-shaven hip-hop artist Lil' Dog? (6)
I believe the answer is:
yapper
'dog?' is the definition.
(I have seen 'Noisy dog' mean 'yapper' so perhaps 'dog' could also mean 'yapper')
I don't understand the rest of the clue.
Can you help me to learn more?
(Other definitions for yapper that I've seen before include "Prepay (anag) -- an excited puppy?" , "Noisy dog" , "Chatterbox" , "garrulous commentator?" , "One who can't stop talking" .)