Rested in country road, when picked up (4)
I believe the answer is:
lain
'rested' is the definition.
(lying is a kind of resting)
'country road when picked up' is the wordplay.
'country road' becomes 'lane' (I've seen this before).
'when picked up' indicates a 'sounds like' (homophone) clue.
'lane' is a homophone of 'LAIN'.
'in' is the link.
(Other definitions for lain that I've seen before include "(Had) remained" , "Past participle of lay" , "Past participle of lie" , "Having been put flat (on the ground)" , "Set down horizontally" .)