Hallo jcz and welcome to the forum.
There's a number of trees that roughly fit that description; if you're in an urban situation, one to rule out first is
Robbinia pseudoacacia (variously known as False Acacia or Honey Locust).
To post photos for ID, click on Galleries at the top of the page, then scroll down to the Unidentified
Gallery - click on that and follow the instructions. Or, view the video guides, top right of this page.
HTH
Tursiops2