The President clamped sanctions on the island after the bomb attack.
3 [always + adverb/preposition]to hold two things together, using a clamp:
Clamp the two parts together until the glue dries.
4also wheel-clamp [usually passive]British Englishto put a clamp on the wheel of a car so that the car cannot be driven away. This is usually done because the car is illegally parked [= boot American English]
He returned, only to discover his car had been clamped.
to take firm action to stop a particular type of crime