Approaches a saner distribution (5)
I believe the answer is:
nears
'approaches' is the definition.
(I know this)
'a saner distribution' is the wordplay.
'distribution' indicates an anagram.
'saner' with letters rearranged gives 'NEARS'.
(Other definitions for nears that I've seen before include "Draws closer to" , "Comes closer" , "Approaches - snare (anag)" , "Uses snare to get closer" , "advances" .)