To search France is hard (4)
I believe the answer is:
fish
'to search' is the definition.
(fishing is a kind of searching)
'france is hard' is the wordplay.
'france' becomes 'f'.
'hard' becomes 'h'.
'f'+'is'+'h'='FISH'
(Other definitions for fish that I've seen before include "Angle, troll" , "Weatherman" , "Burbot or turbot, for example" , "Aquatic creature; rail-joining plate" , "Cod, dab, eel and ray" .)