Spoken with vision, having been assigned position (5)
I believe the answer is:
sited
'spoken' is the definition.
The answer and definition can be both to do with perception as well as being past participle verbs.
Maybe you can see a link between them that I don't see?
'vision having been assigned position' is the wordplay.
I cannot really see how this works, but
'position' could be 'site' (site is a kind of position) and 'site' is found in the answer.
A single letter 'd' remains which might be clued in a way I don't understand.
This may be the basis of clue (or it may be nonsense).
'with' acts as a link.
Can you help me to learn more?
(Other definitions for sited that I've seen before include "installed" , "Placed, located" , "Positioned" , "Situated" , "Put" .)