Placed in dispute (3)
I believe the answer is:
put
'placed' is the definition.
(I've seen this before)
'in dispute' is the wordplay.
'in' indicates a hidden word.
'PUT' is hidden in the letters of 'dispute'.
(Other definitions for put that I've seen before include "Place; placed" , "Place, lay" , "Place in a position" , "Set (in place)" , "Place in a location" .)