If you were running the printer while that clicking noise was almost constant, you most likely have a blocked nozzle now. (The clicking sound is an indication that something isn't right.)
Do a forum search here, I just post a quick rundown on how to remove the nozzle, and it's been written up plenty of times how to clear a jammed/plugged/blocked nozzle. You have described it perfectly. Clicking noise, hot nozzle, nothing coming out.
There are a few things you CAN try before you get into a full nozzle cleaning process that might work.
1) While the nozzle is hot, use a small brass wire brush and clean the nozzle. Sometimes the jam can be right at the tip and this is enough to dislodge it. Try running Load Filament. If it starts clicking, press the FLUX button on the front of the machine to stop it.
2) Again while nozzle is hot, press down on the filament release lever on the extruder at the top of the machine and see if you can push the filament through by hand. It takes a steady hand and even pressure, do not push too hard, you do not want to snap the filament near the extruder area. If it works you will feel it 'give' and see filament start to ooze from the nozzle.
3) You can try doing a couple of 'Hot Pulls'. Heat the nozzle to working temp, 220c and press the filament releas lever on the extruder at the top and pull the filament completely out of the machine in one motion. Try not to stop once you start pulling. Trim off the end of the filament to 45 degrees, reload it with Load command and check. Try this a couple times.
4) Cold Pull. Do a search on this so you get the timing right. It is similar to a Hot Pull, you heat the nozzle to working temp, but then let it cool down to around ~95c and press release lever and pull filament smoothly and quickly. The concept is that you are heating everything in the hotend to molten, letting it cool enough to become a near solid blob and pulling the obstruction(s) out along with the melted filament. This does work sometimes, but it is a bit trickier to get right. The end of the filament you just pulled out will look like a blob and if you are lucky you may see burnt bits or whatever the obstruction was. If it doesn't work the first time, I would move on to cleaning, repeated cold pulls are not likely to help.
Try these in order, if nothing works, you will find nozzle cleaning in several posts here. If it does work and you get it flowing again, you need to address why you are getting the clicking so much. Most likely your obstructed nozzle is burnt/scorched filament from incorrect settings and that is causing the extruder bucking.
We've all been there, it just takes a bit to find the ideal temps & speeds for each machine & filament.