How many letters does the top answer for “give off a shimmering reflection, as of silk” have?

The most common answer is shimmer (7 letters).

Crossword clue: give off a shimmering reflection, as of silk

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

shimmer 7 letters wn-def

a weak and tremulous light