How many letters does the top answer for “causing or tending to cause things to slip or slide” have?

The most common answer is slippery (8 letters).

Crossword clue: causing or tending to cause things to slip or slide

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

slippery 8 letters wn-def

causing or tending to cause things to slip or slide

slippy 6 letters wn-def

causing or tending to cause things to slip or slide