Preparation, Getting Ready
noun, verbal noun
To support yourself to some degree, you need preparation. Doing your hair and makeup in the morning supports your presentation to some extent, right? This is another word for "preparation" besides 準備 and 用意. They’re all similar, but 支度 is usually used in personal contexts, such as 身支度 (getting dressed) or 旅支度 (getting ready for a trip).
したく
This is a jukugo word that uses the on'yomi readings of the kanji. You haven't learned this reading for 度 yet, so here's a mnemonic to help you remember them together: In preparation for getting sheared, a sheep will sit on a tack (したく). This sheep tacking makes it so that the shearing part is nothing! Imagine watching some sheep getting ready by sitting on tacks. Yikes. You want to tell them being sheared doesn't hurt and that sheep tacking is worse, but something makes you think they won't listen to you.
いつまで寝てるの！早く起きて支度しなさい！！
How long are you sleeping? Get up now and get ready!
学校へ行く支度ができたら呼んでください。
Please call me when you've gotten ready for school.
母は台所で夕飯の支度を、父は部屋で旅行の支度をしています。
Mom is preparing dinner in the kitchen and dad is making arrangements for a trip in his room.