Choosing a value based on newest date, and newest value

Good Afternoon,

I'm in search of help on a statement Im trying to perform in a Query transform in my ETL. So this is the scenario. I have a Value called SGSGVL which is "CYW" and in our descriptions table for the VALUE CYW we have 3 different Descriptions like Cadium Yellow, Cadium Yellow Paint and CDM Yellow and the date the description was added. What I would like to do is say:

Where in the description table = CYW, select the newest date and the most used value.

I've been told I can use a MAX statement but Im unsure exactly how to perform this in the query transform. Can anyone help? It would be GREATLY appreciated!

Thanks!