hired gun
US /ˈhaɪərd ˌɡʌn/
UK /ˈhaɪərd ˌɡʌn/

1.
sicario, mercenario, professionista a pagamento
a person whose services can be bought, especially a mercenary or assassin
:
•
The company brought in a hired gun to deal with their legal troubles.
L'azienda ha ingaggiato un sicario per affrontare i loro problemi legali.
•
He was known as a hired gun, always ready to take on dangerous assignments for a price.
Era conosciuto come un sicario, sempre pronto ad accettare incarichi pericolosi per un prezzo.