take some doing

take some doing

To be particularly difficult or require a large amount of effort. Well, it took some doing, but I finally got the engine up and running again. I reckon we can get it finished by tomorrow, but it'll take some doing.
See also: take
Farlex Dictionary of Idioms.

take some doing

to require considerable effort and care. It'll take some doing, but it'll get done. It's not impossible. It'll just take some doing.
See also: take
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs.

take some ˈdoing

,

take a lot of ˈdoing

be hard work; be difficult: Getting it finished by tomorrow will take some doing. It’s going to take some doing to do the report on time, but we should manage it.
See also: take
Farlex Partner Idioms Dictionary

take some doing

tv. to require added effort and planning. It’ll take some doing, but it’ll get done.
See also: take
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions
See also:
  • it will take some doing
  • antifreeze
  • under hatches
  • under the hatches
  • engine room
  • jump-start
  • jump-start someone
  • in the name of God
  • in business
  • be in business