Here is another guitar lick in Drop D tuning that uses a clean sound. This a more of a pop rock style guitar lick. If you have a delay pedal or some chorus use that to color the clean sound of the guitar a bit. The guitar lick alternates with a simple pattern that is played in different octaves. The lick relies heavily on the open D strings on the 4th and 6th strings to ring out. If you like this like try extending the pattern with more notes that sound good to you. The guitar lick uses all eighth notes and repeats at the end. Let the notes ring out especially the open string ones. Here is the guitar tab: