How many letters does the top answer for “open country. sir w. temple.” have?

The most common answer is campania (8 letters).

Crossword clue: open country. sir w. temple.

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

campania 8 letters web-def

Open country. Sir W. Temple.

a recital. sir w. temple. 50% similar → recite

impartiality. sir w. temple. 50% similar → impartialness

to dispirit. sir w. temple. 50% similar → unspirit