"to move rapidly and forcefully"

This is a homophone clue - look for indicators like 'we hear', 'sounds like', 'say', 'aloud', or 'reportedly' - the answer sounds like another word

'law' sounds like the answer when spoken

Answer: CANNONBALL | Definition: 'to move rapidly and forcefully' | Wordplay: Homophone/pun/aural wordplay [announced] of CANON ("law") by BALL ("party")