leave somebody to it

leave (someone) to it

To allow someone to do something without one's involvement or interference; to withdraw from someone so they can do or finish something alone. I just had a question about the order, but I can see that you're busy, so I'll just leave you to it. We left him to it after he made it clear that he didn't need our help.See also: leave

leave somebody ˈto it

(informal) allow somebody to continue doing something on their own, without your help: Oh well, we’ll leave you to it, Derek — you seem to be managing very well by yourself.See also: leave, somebody