How many letters does the top answer for “to kindle. bp. sanderson.” have?

The most common answer is tind (4 letters).

Crossword clue: to kindle. bp. sanderson.

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

tind 4 letters web-def

To kindle. [Obs.] Bp. Sanderson.

a survey. bp. sanderson. 50% similar → surview

a tenet. bp. sanderson. 50% similar → tenent

an antinomian. bp. sanderson. 50% similar → antinomist