Walked past house to find vehicle (3,3)
I believe the answer is:
hot rod
'vehicle' is the definition.
(hot rod is a kind of vehicle)
'walked past house' is the wordplay.
'walked' becomes 'trod' (treading is a kind of walking).
'past' means one lot of letters go next to another.
'house' becomes 'ho' (abbreviation for house).
'trod' put after 'ho' is 'HOT-ROD'.
'to find' is the link.
(Other definitions for hot rod that I've seen before include "fast vehicle" , "Car modified for extra power and speed" , "Souped-up vehicle" , "Shoe rim; strengthened seam" , "Car with souped-up engine" .)