Quietly got up to give tedious speech (5)
I believe the answer is:
prose
'tedious speech' is the definition.
(ordinary speech as opposed to poetry)
'quietly got up' is the wordplay.
'quietly' becomes 'p' (p for piano and quiet).
'got up' becomes 'rose' (I've seen this before).
'p'+'rose'='PROSE'
'to give' is the link.
(Other definitions for prose that I've seen before include "Not poetry" , "Literary genre" , "Writings not in verse" , "Ordinary spoken or written language" , "Ropes (anag.)" .)