How many letters does the top answer for “a person from new zealand” have?

The most common answer is newzealander (12 letters).

Crossword clue: a person from new zealand

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

newzealander 12 letters wd-fact-v3

actor from new zealand 50% similar → campion, crowe, jackson

capital of new zealand 50% similar → wellington

currency of new zealand 50% similar → dollar

desert in new zealand 50% similar → rangipodesert