Scenes of comedy, perhaps, which parliament provides (3)
I believe the answer is:
act
This might be a double definition.
'scenes of' is the first definition.
The definition suggests a singular noun which matches the answer.
'comedy perhaps which parliament provides' is the second definition.
The answer and definition can be both related to communication as well as being singular nouns.
Maybe there's an association between them I don't understand?
Can you help me to learn more?
(Other definitions for act that I've seen before include "Perform(ance)" , "Pretend to be - deed" , "Take part in a play" , "Major section of a play" , "Feat" .)