Dividing line? (5)
I think it could be either:
go your own way
'dividing line?' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for slash that I've seen before include "Greatly reduce (prices)" , "Make sharp, long cut" , "Reduce (a price) greatly" , "Oblique stroke" , "Cut with sweeping strokes" .)