Breakfast for Sir Francis (5)

I believe the answer is:

bacon

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'francis' is the definition.
(I know that francis can be written as Bacon)

I don't understand how the rest of the clue works.

Can you help me to learn more?

(Other definitions for bacon that I've seen before include "early scientist" , "Salted and smoked pig meat" , "Pork rashers" , "famous artist" , "Francis --, Irish painter" .)

I've seen this clue in The Irish News.

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