Bloomer made by newspaper about lady-killer from the East (9)
I believe the answer is:
sunflower
'bloomer' is the definition.
(type of flower)
'newspaper about lady-killer from the east' is the wordplay.
'newspaper' becomes 'sun' (UK newspaper The Sun).
'about' becomes 're' ('re' means regarding or about).
'lady-killer' becomes 'wolf' (wolf can mean a man who seduces women).
'from the east' says the letters should be written in reverse (on a map from right to left).
're'+'wolf'='rewolf'
'rewolf' back-to-front is 'flower'.
'sun'+'flower'='SUNFLOWER'
'made by' acts as a link.
(Other definitions for sunflower that I've seen before include "Plant's" , "seen in Van Gogh's art" , "Large golden bloom" , "Very tall bloom whose seeds are used to make margarine" , "nickname of US State" .)