Jam, maybe, but very little butter (6)

I believe the answer is:

scrape

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'jam' is the definition.
(both can mean a difficult situation)

I don't understand the rest of the clue.

(Other definitions for scrape that I've seen before include "embarassing situation" , "Grate, scratch" , "Scratch; just make (living)" , "A tricky spot" , "Save as much as possible" .)

I've seen this clue in the Evening Standard.

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