skirmisher
/ˈskərmɪʃər/Definitions
1. noun
a fighter in a battle or skirmish, especially a light cavalryman or infantryman in medieval times
“The army’s skirmishers clashed with the enemy forces at the river crossing.”
2. noun
a person or thing that skirmishes or skirmishes with something
“The company’s new product is seen as a skirmisher in the competitive tech market.”