In France I lead record making military transport (4)
I believe the answer is:
jeep
'military transport' is the definition.
(I've seen this in another clue)
'in france i lead record' is the wordplay.
'in france i' becomes 'je' ('I' in French).
'lead' is a charade indicator (letters next to each other).
'record' becomes 'EP' (abbreviation for extended play record).
'je'+'ep'='JEEP'
'making' acts as a link.
(Other definitions for jeep that I've seen before include "US army car" , "Four-wheel-drive general purpose vehicle" , "Army vehicle, 4-wheel drive" , "Small four-wheel drive vehicle" , "Truck" .)