The phrase "an aggressive agent" is correct and usable in written English.
It can be used in contexts where you are describing a person or entity that takes assertive or forceful actions, often in a business, marketing, or scientific context.
Example: "The company hired an aggressive agent to negotiate better terms with their suppliers."
Alternatives: "a forceful representative" or "a proactive agent."
But his ties to Ms. Roth and tolerance for the old-style, back-scratching culture make us doubt he would be an aggressive agent of change.
Far from sugar-coating the legend (whose rascally streetwise schtick the likes of Ritchie ache to echo), Serkis plays him as an aggressive agent provocateur, occasionally inspired, often obnoxious, but always reliably awesome.
Mr. DiNapoli, after all, was viewed as an aggressive agent of change just a year and a half ago, when he took over as chairman of the divided Nassau County Democratic Party with a vow to breathe life into a moribund organization.
Yet, when you examine entrepreneurship through the last three centuries, epitomized by Henry Ford's comment, it seems that Kuratko made an important observation: Entrepreneurship is powerful because it is an aggressive agent of change and therefore an important means of advancement in society.
A more aggressive agent might have immediately demanded a trade or a buyout.
Acid is a primary proximal aggressive agent in the production of stomach ulcer (Weiner, 1991), while circulation and motility are linked to mucosal resistance to acid.
To many music industry executives and associates, Mr. Kwatinetz, 37, is reminiscent of a young Michael S. Ovitz, the aggressive agent who helped start the Creative Artists Agency talent firm in 1975 and rose to be one of Hollywood's most feared power brokers in the 1980's.
A buccaneer of his own stamp, the notably aggressive agent Andrew Wylie, with whom Roger had an ambivalent (mostly antagonistic) relationship, spoke at Roger's memorial service, summing him up as "a magnificent character: vindictive, raucous, willful.
He is punched, handcuffed, yelled at and disrespected, sometimes by a corrupt local official (Yul Vazquez) and his minions, sometimes by an aggressive F.B.I. agent (Anthony Mackie).
So here's a possible strategy for would-be immortals: Live fast, die young and leave your heirs the name of an aggressive licensing agent.
During the call, an aggressive Comcast agent made it very difficult for Block -- a product manager at AOL, the parent company of HuffPost -- to cancel his Comcast service.
