Speaker's perceived environment (5)
I believe the answer is:
scene
'environment' is the definition.
(I know that scene is a type of environment)
'speaker's perceived' is the wordplay.
'speaker's' indicates a 'sounds like' (homophone) clue.
'perceived' becomes 'seen' (I've seen this in another clue).
'seen' sounds like 'SCENE'.
(Other definitions for scene that I've seen before include "Section of an act" , "Picture" , "Division of an act" , "View -part of play" , "View, sight" .)