Stipulates conditions (6)
I believe the answer is:
states
This clue might be a double definition.
'stipulates' is the first 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 can't see?
'conditions' is the second definition.
(I've seen this in another clue)
Can you help me to learn more?
(Other definitions for states that I've seen before include "Administrative units in America" , "Says; conditions" , "Countries with a central government" , "Asserts" , "gallery in ship" .)