Some relief for visually impaired? (7)
I believe the answer is:
braille
'some relief' is the definition.
Although both the answer and definition are singular nouns, I can't see how one could define the other.
I don't understand the rest of the clue.
Can you help me to learn more?
(Other definitions for braille that I've seen before include "Liberal (anag) - reading system" , "Bumps felt" , "Writing system for the blind" , "Raised type for blind people" , "Points raised" .)