How many letters does the top answer for “a highwayman who robs on foot” have?

The most common answer is footpad (7 letters).

Crossword clue: a highwayman who robs on foot

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

footpad 7 letters wn-def

a highwayman who robs on foot

padder 6 letters wn-def

a highwayman who robs on foot

a highwayman or robber on foot. 50% similar → footpad