This seems so simple, but I can't figure it out.

In a large spreadsheet, I would like to ClearContents of the entire row IF
the contents in column D of each respective row is greater than the date
1/1/2005.

So in row 1, if D1 is 1/1/2005, clear
In row 2, if D2 is 1/1/2005, clear......

Thanks!