It'll take us a while longer to 'iron out' the wrinkles/kinks in the network. [=to fix the small problems in the network]
Although he won't say exactly what he's working on now, he says he has quite a few 'irons in the fire'.
You had better have a 'cast-iron' [=('US') 'airtight'] excuse for missing the meeting.
(..) Open the gates. - My lord-- - Your lord has given a command. Man: Find the Blackfish. Put him in irons and hand him over to the Freys. Find him. Go on. Come with us. I've run before from the Red Wedding. (..)2016 TvShow: Game of Thrones Title: No One Season: 6 Episode 8