The phrase "addressing one issue" is correct and usable in written English.
You can use it when discussing a specific problem or topic that needs attention or resolution.
Example: "In this meeting, we will be addressing one issue that has been affecting our team's productivity."
Alternatives: "tackling a single issue" or "focusing on one problem".
His plan, a bid to reform a notoriously cumbersome set of financing formulas, addresses one issue raised in the court case, but is likely to meet with resistance as the Legislature considers his budget in the coming months.
This morning, I would like to address one issue that I believe will help both our profession and our communities.
Consequently, they are not easily solved and actions to address one issue often leads to unforeseen consequences [ 12, 13].
It's not enough to simply address one issue to bring a successful cell therapy to market.
In this Appendix, we address one issue regarding the quality of the two estimators, which we use to recover the genetic parameters.
It is the least-likely option to cause side effects as compared to synthetic medications, and it is likely to benefit multiple aspects of our health at once instead of addressing one medical issue at a time like most medications.
Each team is addressing one priority issue: habitat and species, indicators and information, areas of concern, reduction of persistent bioaccumulative toxics, invasive species, sustainable development, coastal health, and non point source pollution.
Activision did address one issue, and said that the game's marketing campaign had only begun in earnest during the World Series.
The symposium clearly was addressing one of the key issues that impact our national security and global peace.
Since I don't know if I'll be coming back to the Israel-Hamas issue again in the near future, I wanted to address one tangential issue that demonstrates the moral gap between Israel and Hamas.
