Some clean to sanitise rudimentary structures (4-3)
I believe the answer is:
lean-tos
'rudimentary structures' is the definition.
The definition and answer can be both man-made objects as well as being plural nouns.
Perhaps you can see a link between them that I don't see?
'some clean to sanitise' is the wordplay.
'some' indicates the answer is hidden within the clue (some of the parts of the word are used).
'LEAN-TOS' can be found hidden inside 'clean to sanitise'.
Can you help me to learn more?
(Other definitions for lean-tos that I've seen before include "outbuildings" , "extensions" .)