The headword under which the idiom is to be found is underlined. The main stress is on juice. The dictionary in which you can find such stress patterns is the Oxford Advanced Learner's Dictionary (= OALD). OALD 6, OALD 7 and OALD 8 all display the stress marks. No stress mark is give for this idiom in the 1st, 2nd and 3rd editions.
Here are some more idioms for you to mark for stress:
- to do/perform/stage a disappearing/vanishing act.
- to get one's act together.
- a hard/tough act to follow.