New radar’s distribution approaches (5,4)
I believe the answer is:
draws near
'approaches' is the definition.
('draw near' can be a synonym of 'approach')
'new radar's distribution' is the wordplay.
'distribution' indicates an anagram.
'new'+'radars'='newradars'
'newradars' anagrammed gives 'DRAWS NEAR'.
(Other definitions for draws near that I've seen before include "Approaches" , "comes to" .)