How many letters does the top answer for “a member of the guerrilla force that opposed a left-wing government in nicaragua” have?

The most common answer is contra (6 letters).

Crossword clue: a member of the guerrilla force that opposed a left-wing government in nicaragua

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

contra 6 letters wn-def

a member of the guerrilla force that opposed a left-wing government in Nicaragua