The initial idioms of the letter H

have an eye for	have an eye for the main chance
keep an eye on	have an impact on
have an itch for something	have an open mind
have another think	have another think coming
have ants in one’s pants	have ants in pants
have around	have arrived
have ass in a sling	have at
have at fingertips	Have at it
have back	have back against the wall
have back to the wall	have back up
have bags under eyes	have bats in belfry
have bats in one’s belfry	have bats in the belfry
have bearing on	have been around
have been around the block	have been in the wars
have been to hell and back	have best interest at heart