"answer to advertisement" is a correct and usable phrase in written English.
It is typically used when someone responds or replies to a job advertisement, product advertisement, or any type of advertisement seeking a specific response or action. Example: I saw your advertisement for a marketing manager and I would like to submit my resume as an answer to your advertisement.
He had driven all the way to Kildare, in answer to an advertisement, to vet this pedigree dog, and his wife had decided to come along.
A young woman recently showed up in answer to an advertisement that specified "meals, uniforms, and laundry free," brought along with her, and presented to the restaurant manager, a bag of soiled laundry.
This spot from President Bush will begin running in New Mexico this weekend, an answer to an advertisement there by Senator John Kerry that, among other things, highlights his authorship of a 1997 book about global security.
All we know is what the bewildered red-headed Jabez Wilson tells Sherlock Holmes: that in answer to an advertisement he secured a position worth four pounds a week copying out the Encyclopedia Britannica purely because of the colour of his hair.
Lady Audley's Secret by Mary Elizabeth Brandon Beautiful Lucy Graham arrives at the village near Audley Court in answer to the local surgeon's advertisement for a governess.
The most respectable answer to the problem is that advertisements need to become more interesting and compelling.
The newspaper advertisement looked like the answer to her problems.
SCORECARD The advertisement is a direct answer to Mrs. Clinton's commercial raising the issue of oil company contributions.
"I thought of cats too," Elias would chime in at family gatherings, "but I was too busy to answer the advertisement that day".
The opposition of his family to this match caused her, in 1876, to answer Nobel's advertisement for a secretary-housekeeper at his Paris residence.
A man who answered an online advertisement to donate sperm to a lesbian couple is fighting the state's efforts to force him to pay child support for the girl conceived through artificial insemination.
