Poor Gran gets rumpled white bedclothes (9)
I believe the answer is:
nightwear
This might be a double definition.
'poor gran' is the first definition.
The definition suggests a singular noun which matches the answer.
'rumpled white bedclothes' is the second definition.
The answer and definition can be both man-made objects as well as being singular nouns.
Maybe they are linked in a way I don't understand?
'gets' acts as a link.
Can you help me to learn more?
(Other definitions for nightwear that I've seen before include "What's put on kippers" , "Bedroom items" , "habit of one retiring" , "Bed clothing (W, not G)" , "this brings bed to mind?" .)