Wiktionary
vb. (context transitive idiomatic English) To take measures to stop something; to put an end to.
Usage examples of "clamp down on".
At first it was all she could to not to lash out, forcing her mind to clamp down on her glands.
When she put weight on one end, the rope would clamp down on the cable and hold itself in place.
As he tried to rise, the dog released the man's leg and went for the right wrist, the main appendage a K-9 patrol dog is trained to clamp down on, and began pulling in any direction possible, trying to keep the suspect off-balance until his human partner arrived.
But then he'd known that when he ordered the police to seal off the beach and clamp down on any physical bravado as the drop gliders arrived.
I don't have figures on the rest of the country, but the suggestion to clamp down on the stories came from the eastern news services when the papers here put our first cases on the wire.
They hadn't been able to clamp down on things here and make them stay quiet.
Basically we think that they are planning to form some kind of international body to clamp down on crypto and particularly on digital money.
He struggled for a moment then managed to clamp down on his emotions, sufficient to lock gazes with Blistig and ask, 'Was that child's arrival set up between you and Keneb?
He smiles lop-sidedly and I feel my ears burning until I clamp down on peripheral circulation and twitch myself into combat-ready focus, furious at being so clearly outmanoeuvred on all sides.
If you clamp down on emergency room charges under Medicare, Medicaid costs will go up.
It was like a balloon, clamp down on one area and the other just inflated more.
Refused to clamp down on terrorist networks that attack innocent Israeli civilians.
Unable to clamp down on his own emotions, he whirled her around, his hands hard on her shoulders, his eyes icy blue and furious.
Her heart was beating fast, and she quickly and efficiently used her training to clamp down on it, for she was terrified that Bryn would sense her agitation.