Case file LinkedIn Crossclimb #837: 4-letter ladder, 5 middle exhibits, combo prompt "A compound word meaning to go beyond one's authority or boundaries.". Endpoints: OVER (top) and STEP (bottom).
Middle phase answers: "Appliance for roasting a turkey" = OVEN; "Common Swedish boy's name that means "young man"" = SVEN; "Perceived" = SEEN; "Appear (to be)" = SEEM; "Part of a plant, or an acronym for four evidence-based fields of study" = STEM.
Ordering phase: the valid middle chain is OVEN → SVEN → SEEN → SEEM → STEM. This permutation is the only valid one-letter chain for these answers.
Evidence link: OVER → OVEN. R→N at the fourth letter (OVER → OVEN).
Evidence link: OVEN → SVEN. O→S at the first letter (OVEN → SVEN).
Evidence link: SVEN → SEEN. V→E at the second letter (SVEN → SEEN).
Evidence link: SEEN → SEEM. N→M at the fourth letter (SEEN → SEEM).
Evidence link: SEEM → STEM. E→T at the second letter (SEEM → STEM).
Evidence link: STEM → STEP. M→P at the fourth letter (STEM → STEP).
Verdict: OVER → OVEN → SVEN → SEEN → SEEM → STEM → STEP satisfies every one-letter constraint. The combo clue "A compound word meaning to go beyond one's authority or boundaries." describes both end words together — "OVER" and "STEP" each differ by one letter from their adjacent middle rungs and satisfy the shared top+bottom prompt.