Crossword Genius

Murphy's jacket (4)

Ross

I believe the answer is:

peel

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This might be a double definition.

'murphy's' is the first definition.
The answer and definition can be both things that one consumes for nourishment as well as being singular nouns.
Perhaps they are linked in a way I don't understand?

'jacket?' is the second definition.
(thesaurus)

Can you help me to learn more?

(Other definitions for peel that I've seen before include "Rind of fruit" , "A PM; a fortified tower" , "Outer skin" , "Remove skin as from potato" , "Remove skin of vegetable or fruit" .)

I've seen this clue in the Evening Standard.
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