Could be to yield, wanting minimum of kerfuffle? (4,2,5,4)
I believe the answer is:
take it lying down
'could be to yield wanting minimum of kerfuffle?' is the definition.
I know nothing about this answer so I cannot tell whether it can be defined by this definition.
'could be to yield wanting minimum of kerfuffle?' is the wordplay.
'could be' indicates anagramming the letters.
'minimum of' indicates taking the first letters.
The initial letter of 'kerfuffle' is 'k'.
'to'+'yield'+'wanting'+'k'='toyieldwantingk'
'toyieldwantingk' is an anagram of 'TAKE IT LYING DOWN'.
(Another definition for take it lying down that I've seen is " Endure something passively".)