Housing not yet marvellous? (6)
I believe the answer is:
prefab
'housing' is the definition.
The definition and answer can be both man-made objects as well as being singular nouns.
Perhaps you can see a link between them that I don't see?
'not yet marvellous?' is the wordplay.
'not yet' becomes 'pre' (I've seen this in other clues).
'marvellous?' becomes 'fab' (slang abbreviation of fabulous).
'pre'+'fab'='PREFAB'
Can you help me to learn more?
(Other definitions for prefab that I've seen before include "Building manufactured by assembling pieces" , "Building assembled with sections made elsewhere" , "British inter-war temporary housing, popularly called" , "Easily-erected house" , "Easily-assembled 1940s' home" .)