How many letters does the top answer for “to wind up. spenser.” have?

The most common answer is upwind (6 letters).

Crossword clue: to wind up. spenser.

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

upwind 6 letters web-def

towards the side exposed to wind

to cheer up. spenser. 50% similar → upcheer

to hang up. spenser. 50% similar → uphang

to tie up. spenser. 50% similar → uptie