Flower girl from the valley? (4)
I believe the answer is:
lily
This clue is a double definition.
'flower girl' is the first definition.
(I've seen this in other clues)
'from the valley?' is the second definition.
(lily of the valley)
(Other definitions for lily that I've seen before include "Flower -- girl" , "Easter flower" , "Fragrant bulbous plant" , "Girl's name - plant with hanging flowers" , "Tiger -; water -" .)