Concession for weak person (3)

I believe the answer is:

sop

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'concession' is the definition.
(I know that sop is a type of concession)

I don't understand the remainder of the clue.

Can you help me to learn more?

(Other definitions for sop that I've seen before include "Propitiatory gift" , "Small concession" , "Piece of bread dipped in liquid, or a concession" , "Propitiatory offering" , "Bread dipped in gravy" .)

I've seen this clue in The Times.

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