As with Chevvron, been retired a bit, but you have "received a clearance" .
You were told to "proceed direct to the VOR for an ILS." There's your clearance.
The fact you are being vectored is a bit of a red herring. You're being vectored "for spacing" (as opposed to separation) from other traffic confirms you are making an approach.
However as with HD and Not Long Now, ATC normally expect anything when you lose comms!
Squawk R/T fail and good luck with some of the most complicated procedures there are, when you may also have further problems!