Daughter is given something flowery - not a success! (8)
I believe the answer is:
disaster
'flowery not a success' is the definition.
I can't judge whether this defines the answer.
'daughter is given something' is the wordplay.
'daughter' becomes 'dis' (I've seen this in other clues).
'is given' is a charade indicator (letters next to each other).
'something' becomes 'aster' (I can't justify this - if you can you should give a lot more credence to this answer).
'dis'+'aster'='DISASTER'
Can you help me to learn more?
(Other definitions for disaster that I've seen before include "awful situation" , "not a success!" , "terrible trouble" , "Star dies (anag)" , "Extreme event resulting in great loss and misfortune" .)