I tackle LinkedIn Crossclimb #816 in three passes — middles first, ordering second, combo ends last. This 5-letter board runs SMART → … → SHARP with combo clue "Two words to describe someone intelligent.".
Middle phase: I work clues in board order — "Begin" → START; "Parts of a constellation" → STARS; "Practices for a boxing match" → SPARS; "It may light a fire" → SPARK; "Hammerhead or great white, for example" → SHARK.
Ordering phase: the valid middle chain is START → STARS → SPARS → SPARK → SHARK. This permutation is the only valid one-letter chain for these answers.
I verify SMART to START — M→T at the second letter (SMART → START).
I verify START to STARS — T→S at the fifth letter (START → STARS).
I verify STARS to SPARS — T→P at the second letter (STARS → SPARS).
I verify SPARS to SPARK — S→K at the fifth letter (SPARS → SPARK).
I verify SPARK to SHARK — P→H at the second letter (SPARK → SHARK).
I verify SHARK to SHARP — K→P at the fifth letter (SHARK → SHARP).
Finished chain: SMART → START → STARS → SPARS → SPARK → SHARK → SHARP. Combo ends SMART + SHARP clicked once ordering locked. Only one middle permutation forms a valid ladder from top to bottom — if ordering feels stuck, recheck a middle answer.