Any money, you could say, for a buttercup (7)
I believe the answer is:
anemone
'for a buttercup' is the definition.
(I've seen this in another clue)
'any money you could' is the wordplay.
I cannot really see how this works, but
'money' could be 'm' (abbreviation in economics) and 'm' is found in the answer.
'you' could be 'one' (I've seen this before) and 'one' is present in the answer.
The remaining letters 'ane' is a valid word which might be clued in a way I don't understand.
This may be the basis of the clue (or it may be nonsense).
'say' is the link.
Can you help me to learn more?
(Other definitions for anemone that I've seen before include "Woodland plant, eg the windflower" , "Plant of the buttercup family with brightly coloured flowers" , "Flower related to the buttercup" , "The flower is no enema" , "Bright flower or sea plant" .)