Will Clamshell mode work with Displaylink?
For those who like to place their MacBook in a docking station and place it completely next to a workstation, we've got some bad news. Currently Clamshell / Lid Closed Mode won't work with monitors connected with DisplayLink. There is discussion about that in this thread.
"Development is in progress with a third party."
But you can still use Clamshell mode with one monitor connected natively. Check out those UltraWide monitors that may just suit your needs.