Seek and find in dilapidated condition (3,4)
I believe the answer is:
run down
This clue is a double definition.
'seek and find' is the first definition.
(run down can mean to find after a search)
'in dilapidated condition' is the second definition.
(run down can mean dilapidated or ruined)
(Other definitions for run down that I've seen before include "Hit by car" , "Make exhausted" , "Tired - shabby - criticise" , "slate" , "Summary; debilitated" .)