have a hold over
Also, have a hold on. Have a controlling influence over. For example, Blackmailers have a hold over their victims, or, as Shakespeare put it in The Merchant of Venice (4:1): “The law has yet another hold on you.” [Late 1500s]
The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.