"press for an answer" is correct and usable in written English.
You can use this phrase when you are asking someone for a response or expecting them to give you a response soon. For example: "I sent my inquiry several days ago but haven't received an answer yet. I'm going to have to press for an answer soon."
His wife continued to press for an answer, stating, "I am very patient.
By the time the documentary "Dear Jesse" comes to an end, one question above all seems to press for an answer: Is this film, written and directed by Tim Kirkman, likely to change any voter's mind about Jesse Helms, the conservative Republican who has represented North Carolina in the United States Senate since 1972?
Oborne writes that Insole considered the events surrounding the selection meeting as among the worst of his life, but that "he and the other selectors were victims of the decision, reached on the advice of Alec Douglas-Home early in 1968, not to press for an answer to the MCC demand there should be 'no preconditions' for the tour.
"More diapers?" he joked when pressed for an answer about what he might buy.
When pressed for an answer, I'll say The Jungle Line is probably my favourite Joni Mitchell track.
But if pressed for an answer, Belichick could certainly provide a range of probabilities for each of those branches.
Khrushchev pressed for an answer from the man he had regarded as a close friend, and whom indeed he had appointed as KGB chief three years earlier.
Pressed for an answer on Makhul, Netanyahu might respond that the evicted residents had lived there illegally, with no license granted to build homes.
Muir's office told Guardian Australia that the senator had pressed for an answer to that question in the past, but had received no answer from the new immigration minister, Peter Dutton.
He is hard pressed for an answer when asked about the downside of the commute, pointing out that he packs in visits with friends and family and stocks up on his favourite foods when he's in London.
Pressed for an answer, Mr. Bush said, "Say, hey, I want to continue this job to help this country". He added, "To get out of the arena, to suggest that you're going to run because it's not particularly pleasant, that's not the way I operate". Serene or Drowsy?
