Quiet partner?
I believe the answer is:
peace
'quiet partner?' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for peace that I've seen before include "Absence of war" , "''And I shall have some ... there, for ... comes dropping slow'' (WB Yeats)" , "Quiet companion" , "'Calm, harmony (5)'" , "Calmness" .)