How many letters does the top answer for “to gain favor. sir w. temple.” have?

The most common answer is ingratiate (10 letters).

Crossword clue: to gain favor. sir w. temple.

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

ingratiate 10 letters web-def

gain favor with somebody by deliberate efforts

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

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

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