Run in to end where batsman stands (6)
I believe the answer is:
crease
'where batsman stands' is the definition.
(a cricket batsman stands in the crease)
'run in to end' is the wordplay.
'run' becomes 'r' (cricket abbreviation).
'in' means one lot of letters goes inside another.
'to end' becomes 'cease' (to cease is to come to an end).
'r' going inside 'cease' is 'CREASE'.
(Other definitions for crease that I've seen before include "Dagger rarely" , "Mark made by fold" , "Wrinkle on the cricket pitch?" , "ruck" , "Where the batsman stands" .)