Remove fat as agreed, cooking starters with scrambled eggs (8)

I believe the answer is:

degrease

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'remove fat' is the definition.
(I've seen this before)

I cannot understand how the rest of the clue works.

(Other definitions for degrease that I've seen before include "Remove oily matter from" , "Remove fat" , "Lose fat" , "Remove oily substance from" .)

I've seen this clue in the Irish Times and the Irish Times (Crosaire).

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