MP should provide this dramatic performance (14)
I believe the answer is:
representation
This clue is a double definition.
'mp should provide this' is the first definition.
(an MP represents their constituents)
'dramatic performance' is the second definition.
(dramatic representation)
(Other definitions for representation that I've seen before include "Image or model (of something)" , "Verbal report" , "Sketch" , "show" , "Model or depiction (of something)" .)