How many letters does the top answer for “to shine. piers plowman.” have?

The most common answer is leme (4 letters).

Crossword clue: to shine. piers plowman.

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

leme 4 letters web-def

A ray or glimmer of light; a gleam. [Obs.] Chaucer.

a warrener. piers plowman. 50% similar → warner

that which annoys. piers plowman. 50% similar → noy

to put. piers plowman. 50% similar → pult