How many letters does the top answer for “album by lost” have?

The most common answer is gothic (6 letters).

Crossword clue: album by lost

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

gothic 6 letters wd-fact-v3

a style of architecture developed in northern France that spread throughout Europe between the 12th and 16th centuries;

shadesofgod 11 letters wd-fact-v3

album by that 50% similar → beautifulworld, everythingchanges, nobodyelse

album by who 50% similar → aquickone, endlesswire, facedances