How many letters does the top answer for “a port on the atlantic and the largest city of morocco” have?

The most common answer is casablanca (10 letters).

Crossword clue: a port on the atlantic and the largest city of morocco

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

casablanca 10 letters wn-def

a port on the Atlantic and the largest city of Morocco