Dramatic episode is witnessed we hear (5)
I believe the answer is:
scene
'dramatic episode' is the definition.
'scene' can be an answer for 'episode' (I've seen this in another clue). I am unsure of the 'dramatic' bit.
'witnessed we hear' is the wordplay.
'witnessed' becomes 'seen' (similar in meaning).
'we hear' shows a homophone (sound like).
'seen' is a homophone of 'SCENE'.
'is' acts as a link.
Can you help me to learn more?
(Other definitions for scene that I've seen before include "View, sight" , "Section of a stage work" , "Division of a play" , "Location; outburst" , "site" .)