Speak at length with enough for meeting, no question (5)
I believe the answer is:
orate
'speak at length' is the definition.
(to orate is to give a speech)
'with enough for meeting no question' is the wordplay.
'with enough for meeting' becomes 'quorate' (with a quorum, the number needed for a meeting).
'no' suggests deleting specific letters.
'question' becomes 'qu'.
'quorate' with 'qu' removed is 'ORATE'.
(Other definitions for orate that I've seen before include "Make a lengthy speech" , "Speak like Cicero?" , "Lecture" , "Hold forth" , "Pontificate" .)