How many letters does the top answer for “someone employed to collect and dispose of refuse” have?

The most common answer is dustman (7 letters).

Crossword clue: someone employed to collect and dispose of refuse

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

dustman 7 letters wn-def

someone employed to collect and dispose of refuse

garbageman 10 letters wn-def

someone employed to collect and dispose of refuse

someone employed to collect tolls 50% similar → toller, tollman