It looks a lot like the pic of Fragrant Sumac in my Plants of Texas, but this is what that looks like in the usda plant database, except for a couple of pix on the bottom row.

However, it does look a lot more like a pic of the same plant on wildflower.org.

Is it fragrant sumac or something else?

I agree, Fragrant Sumac.

I think it is FS. When mine was smaller, it looked just like yours and the 3rd pic in this link

Here is a link that might be useful: Fragrant Sumac

The appearance of Rhus aromatica changes in parts of central Texas and toward the west. That's why yours looks different from some photos. To the East there are bigger leaves shaped a bit different. Mine looks like yours.