Proud words misled Liberal (7)
I believe the answer is:
braille
'proud words' is the definition.
The definition and answer can be both related to communication as well as being singular nouns.
Maybe you can see an association between them that I can't see?
'misled liberal' is the wordplay.
'misled' indicates an anagram (I've seen 'misleading' mean this (I've seen this in other clues)).
'liberal' with letters rearranged gives 'BRAILLE'.
(Other definitions for braille that I've seen before include "French educationist" , "Writing system for the blind" , "Raised text for the blind" , "Points raised" , "Uneven writing" .)