The phrase "a cloud of aides" is correct and usable in written English.
It can be used to describe a group of aides surrounding or assisting someone, often in a political or formal context.
Example: "The politician stepped out of the car, greeted by a cloud of aides ready to assist with the day's events."
Alternatives: "a swarm of aides" or "a group of aides".
Instead, they stride purposefully down long corridors, surrounded by a cloud of aides, barking into their BlackBerrys.
Every few minutes, a new senator would show up, trailing a cloud of aides, and Wagoner, smiling fixedly, would pop open the hood or offer to take him for a ride.
He was the first thoroughly modern President, an international celebrity who treated everything important that happened anywhere in the world as his business, and who travelled in a great cloud of aides and reporters.
After Mr. Towle quit the county Legislature under a cloud of scandal, one of his aides obtained a job with the district in August 2003.
Azariadis and Sapidis [Azariadis PN, Sapidis NS. Drawing curves onto a cloud of points for point-based modelling. Computer-Aided Design 2005 37(1):109–22] introduced a novel method of point directed projection (DP) onto a point cloud along an associated projection vector.
A novel method for projecting points onto a point cloud, possibly with noise, is presented based on the point directed projection (DP) algorithm proposed by Azariadis P., Sapidis N. [Drawing curves onto a cloud of points for point-based modelling. Computer-Aided Design 2005; 37(1): 109–22].
Bokova, slim, precise, with sharp blue-green eyes and a string of pearls, is chaperoned briskly through these spaces by an energetic aide, Snezhana, who has a cloud of bright red hair.
The past few days have brought a growing list of confirmed communications between Trump campaign aides and Russian officials, with each new revelation adding to a cloud of suspicion that hangs over the White House as critics demand an independent investigation.
Despite Mr. Modi's subsequent denials, he has not fully escaped a cloud of accusations by rival political groups, victims and their families, and human rights groups that he and his aides condoned the attacks against Muslims and — as one case now before the Supreme Court charges — may even have encouraged them.
