Flower for one with false name (7)
I believe the answer is:
anemone
'flower' is the definition.
(anemone is a kind of flower)
'one with false name' is the wordplay.
'with' is a charade indicator (letters next to each other).
'false' indicates an anagram.
'name' with letters rearranged gives 'anem'.
'one' after 'anem' is 'ANEMONE'.
'for' is the link.
(Other definitions for anemone that I've seen before include "Woodland plant - marine polyps" , "Colourful plant of buttercup family" , "Buttercup-like flower or sea animal" , "Name one strange flower" , "White woodland flower" .)