In one of my projects, there was a situation. Client proposed a new complex feature for development and wanted to promote it at the earliest. it was an important game changing feature. Now the Requirement from the client about this feature was pretty standard detailing explicit information to set this up.
On reviewing the document, I realized the Requirements weren’t very clear. I had queries. I needed more information. Meanwhile, the development team had started working on the new feature as the client wanted to roll it out within a week.
My Team Lead helped me find answers to few questions. For remaining queries, he asked me to address them to the client. Also, I communicated my concerns to the development team as well.