International desire for trial run (4,5)
I believe the answer is:
test drive
'for trial run' is the definition.
(I've seen this before)
'international desire' is the wordplay.
'international' becomes 'test' (I've seen this before).
'desire' becomes 'drive'.
'test'+'drive'='TEST-DRIVE'
(Other definitions for test drive that I've seen before include "Evaluate performance" , "Trial run" , "Shot" , "Evaluate jeep, say" , "Try out new car" .)