To slow, impede, or stop someone's or something's progress or activities. The recent economic downturn put the clamps on the government's plans for redeveloping the region's transportation system.They put the clamps on our department because they felt our criticism was too damaging to the company's image.
put the clamps on someone/something
and put the clamps on
tv. to impede or block someone or something; to restrain or restrict someone. Fred had to put the clamps on Tony, who was rushing his work too much.