How many letters does the top answer for “an adornment consisting of a strip of a contrasting color or material” have?

The most common answer is banding (7 letters).

Crossword clue: an adornment consisting of a strip of a contrasting color or material

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

banding 7 letters wn-def

an adornment consisting of a strip of a contrasting color or material

stripe 6 letters wn-def

an adornment consisting of a strip of a contrasting color or material