Yellow wildflower (9)
I believe the answer is:
buttercup
'yellow wildflower' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for buttercup that I've seen before include "Goldilocks, possibly" , "Common yellow meadow plant" , "Bumboat woman" , "Common meadow flower" , "found in meadow" .)