Overlapping signs for places of learning (9)
I believe the answer is:
libraries
This clue might be a double definition.
'overlapping signs' is the first definition.
The answer and definition can be both man-made objects as well as being plural nouns.
Maybe they are linked in a way I don't understand?
'places of learning' is the second definition.
Although both the answer and definition are plural nouns, I can't understand how they can define each other.
'for' acts as a link.
Can you help me to learn more?
(Other definitions for libraries that I've seen before include "facilities for readers" , "Reading rooms" , "Collections" , "They house books" , "Book repositories" .)