It's touchingly read (7)

I believe the answer is:

braille

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'touchingly read' is the definition.
The definition and answer can be both related to communication as well as being singular nouns.
Maybe there's a link between them I don't understand?

I don't understand how the rest of the clue works.

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" , "Liberal language for blind people" , "System of writing with raised dots" .)

I've seen this clue in the Evening Standard.

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