Speak with enough representatives, without question (5)
I believe the answer is:
orate
'speak' is the definition.
(orating is a kind of speaking)
I can't explain the remainder of the clue.
Can you help me to learn more?
(Other definitions for orate that I've seen before include "Hold forth" , "Make a flowery speech" , "Speak in florid style" , "Talk pompously" , "Give a formal address" .)