hand it to - Phrases/Idioms
The American Heritage® Dictionary of Idioms by Christine Ammer. Copyright © 2003, 1997 by The Christine Ammer 1992 Trust. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Give credit to, congratulate, as in You've got to hand it to her; she knows what she's doing. [c. 1900]