Go on a path leading to decline (4,4)
I believe the answer is:
turn away
'decline' is the definition.
(thesaurus)
'go on a path' is the wordplay.
'go' becomes 'turn' ('turn' can be a synonym of 'go'**).
'on' says to put letters next to each other.
'path' becomes 'way' (way is a kind of path).
'turn'+'a'+'way'='TURN AWAY'
'leading to' is the link.
(Other definitions for turn away that I've seen before include "decline" , "Refuse entrance to" , "Deflect" .)