When one stops being bearer of misinformation (9)
I believe the answer is:
aspersion
'bearer of misinformation' is the definition.
The answer and definition can be both related to communication as well as being singular nouns.
Perhaps they are linked in a way I don't understand?
'when one stops being' is the wordplay.
'when' becomes 'as' (eg 'when I walked' means 'as I walked').
'one' becomes 'I' (Roman numeral).
'stops' indicates putting letters inside.
'being' becomes 'person' (person is a kind of being).
'i' put inside 'person' is 'persion'.
'as'+'persion'='ASPERSION'
Can you help me to learn more?
(Other definitions for aspersion that I've seen before include "Attack on reputation" , "Attack on the character" , "reflection" , "Slander" , "Cast this slur" .)