Though there are still four years to go in the 90's, business and government leaders in New York honored Donald J. Trump yesterday for pulling off what they called "the comeback of the decade."

Mr. Trump, the developer who came to epitomize opulent wealth during the 80's before tumbling into deep financial trouble, has managed to erase much of his debt and is moving ahead with major projects at a time other developers are idling.

Judging from the attention showered on him yesterday at the Union League Club, some of New York's civic and business leaders are quite captivated by Mr. Trump, despite the financial uncertainties that still surround some of his properties.

But the operative word at the luncheon was comeback, though Mr. Trump might dispute that he ever went far away. William D. Fugazy, the limousine magnate and chairman of the Forum Club, the group of business and civic leaders that sponsored the luncheon, presented Mr. Trump with a boomerang encased in glass. "You throw it and it always comes back," he said as he handed it over.