How many letters does the top answer for “an act of urging on or spurring on or rousing to action or instigating” have?

The most common answer is incitation (10 letters).

Crossword clue: an act of urging on or spurring on or rousing to action or instigating

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

incitation 10 letters wn-def

an act of urging on or spurring on or rousing to action or instigating

incitement 10 letters wn-def

an act of urging on or spurring on or rousing to action or instigating