Unknown, head-shaven hip-hop artist Lil' Dog? (6)

I believe the answer is:

yapper

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'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" .)

I've seen this clue in The Times.

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