Emma and Kim might be found on this platform (9)
I believe the answer is:
bookshelf
'emma and kim might be found on this platform' is the definition.
The answer and definition can be both man-made objects as well as being singular nouns.
Perhaps there's a link between them I don't understand?
This is the entire clue.
Can you help me to learn more?
(Other definitions for bookshelf that I've seen before include "It may hold great volumes?" , "Library furniture item" , "A supporter of literature?" , "supporter of literary works" , "Library support" .)