Flower girl finally out of bed and home (5)
I believe the answer is:
lupin
'flower' is the definition.
(I've seen this before)
'girl finally out of bed and home' is the wordplay.
'finally' suggests the final letters.
'out of bed' becomes 'up' ('up' can be a synonym of 'out of bed').
'and' is a charade indicator (letters next to each other).
'home' becomes 'in' ('he's home' can mean 'he's in').
The last letter of 'girl' is 'l'.
'l'+'up'+'in'='LUPIN'
(Other definitions for lupin that I've seen before include "Flowering plant" , "It has tall flower spike" , "Garden plant with long, spiky flowers" , "Tall-spiked plant" , "Plant with flowers on long spikes" .)