Bobby's named after him (4)

I believe the answer is:

peel

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'bobby's named after him' is the definition.
Although both the answer and definition are singular nouns, I cannot understand how one could define the other.

This is all the clue.

Can you help me to learn more?

(Other definitions for peel that I've seen before include "Rind of fruit" , "Strip; rind" , "Citrus skin" , "old prime minister" , "Skin of eg an orange" .)

I've seen this clue in the Evening Standard.

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