One of the rasher philosophers? (5)

I believe the answer is:

bacon

I'm a little stuck... Click here to teach me more about this clue!

'one of the rasher' is the definition.
'bacon' can be an answer for 'rasher' (I've seen this before). I'm unsure of the 'one of the' bit.

I cannot 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 "Irish-born painter" , "Meat - essayist - painter" , "friar" , "Writer of essays" , "famous artist" .)

I've seen this clue in the Evening Standard.

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