Kept in the studio still (5)
I believe the answer is:
posed
'kept' is the definition.
The answer and definition can be both to do with communicating as well as being past participle verbs.
Maybe they are linked in a way I don't understand?
I can't explain the remainder of the clue.
Can you help me to learn more?
(Other definitions for posed that I've seen before include "Arranged for pictorial purposes" , "Struck attitude - sat for painter" , "Presented (a question)" , "Positioned" , "Presented (a problem)" .)