Sure is.
First you get the actual location by targeting the mob and doing /echo ${Target.LocYX} then you flip those numbers because the devs hate us and use XY in the other stuff lol.
So, you have your known location and you flipped it to get the XY value. Now it is as simple as /target ${Spawn[loc X Y; radius 10]}
You could also do ${Target.X} and ${Target.Y} then place them in to a variable to call them as ${Spawn[loc ${TarX} ${TarY}; radius 10]}