Hear a silent arrangement (6)
![Ross](/clue/static/ross-mug.min.png)
I believe the answer is:
listen
'hear' is the definition.
(I've seen this before)
'a silent arrangement' is the wordplay.
'arrangement' indicates an anagram.
'silent' is an anagram of 'LISTEN'.
(Other definitions for listen that I've seen before include "Give ear (to)" , "Respond (to advice)" , "16 (anag.)" , "Harken" , "Give one's attention" .)