Mao ditched dodgy ornamental lamp (7)
I believe the answer is:
lantern
'lamp' is the definition.
(I know that lantern is a type of lamp)
I can't explain the rest of the clue.
Can you help me to learn more?
(Other definitions for lantern that I've seen before include "Light-admitting structure on roof" , "Top of lighthouse" , "Enclosed lamp" , "Portable light source" , "Enclosed light" .)