Nothing spells "left hook" like a van coming up alongside with its indicators on. However, this one did actually wait for the cyclist to get past.
For London viewers: note the stressful conditions of Bristol streets. This is actually Sustrans NC4, as marked by some fading paint.
For ABD members from Weston Super Mare and 1973: note the parking spaces stolen by the RPZ, the cyclists in one direction, and how a van was held from turning by another bicycle —costing the company and city money.