Disprove false yields (8)
I believe the answer is:
provides
'yields' is the definition.
The answer and definition can be both to do with communicating as well as being verbs in their -s form.
Perhaps you can see a link between them that I don't see?
'disprove false' is the wordplay.
'false' indicates an anagram.
'disprove' anagrammed gives 'PROVIDES'.
Can you help me to learn more?
(Other definitions for provides that I've seen before include "Gives what is desired or needed" , "Supplies, furnishes" .)