Hear silent arrangement (6)
I believe the answer is:
listen
'hear' is the definition.
(I've seen this before)
'silent arrangement' is the wordplay.
'arrangement' is an anagram indicator.
'silent' is an anagram of 'LISTEN'.
(Other definitions for listen that I've seen before include "Respond to a request" , "Follow advice" , "Pay attention and hear" , "Give one's attention" , "what buggers do" .)