From Longman Dictionary of Contemporary Englishhave your work cut out (for you)have your work cut out (for you)informalDIFFICULT used to say that it will be very difficult to do something The team will have their work cut out if they are to win the competition. → work
Examples from the Corpus
have your work cut out (for you)• The home team has not beaten the Scarlets for some dozen matches and should still have their work cut out to win.• They have their work cut out adapting themselves to it, and it to themselves.• They have their work cut out for them.• We have our work cut out for us.• Whoever takes on the trout farm will have their work cut out.• Election monitors will have their work cut out.• So you have your work cut out for you. 