How many letters does the top answer for “fruit (especially peach) whose flesh adheres strongly to the pit” have?

The most common answer is cling (5 letters).

Crossword clue: fruit (especially peach) whose flesh adheres strongly to the pit

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

cling 5 letters wn-def

come or be in close contact with; stick or hold together and resist separation

clingstone 10 letters wn-def

fruit (especially peach) whose flesh adheres strongly to the pit