Fake warning from driver about end of parking (5)
I believe the answer is:
forge
'fake' is the definition.
(I know that fake can be written as forge)
'warning from driver about end of parking' is the wordplay.
'warning from driver' becomes 'fore' (warning shouted by golfers - golfers 'drive' balls).
'about' is an insertion indicator.
'end of' says to take the final letters.
The final letter of 'parking' is 'g'.
'fore' placed around 'g' is 'FORGE'.
(Other definitions for forge that I've seen before include "Smith's workshop" , "Ironworks" , "Blacksmith's premises" , "Fabricate" , "Form by heating and hammering" .)