How many letters does the top answer for “place or set apart” have?

The most common answer is insulate (8 letters).

Crossword clue: place or set apart

2 answers found in Letterora's clue database (Wikidata facts, Open Trivia DB, WordNet and Webster definitions — all licensed sources).

insulate 8 letters wn-def

place or set apart

isolate 7 letters wn-def

place or set apart

set or place in 67% similar → inset

set apart from others 50% similar → sequester, sequestrate

set or keep apart 50% similar → sever

to set apart. donne. 50% similar → sepose