I am wondering about the VOR 21 letdown approach in ACE( lido charts). If you`re inbound LZR on the Terto 1Q arrival, which has a MEA of 5000feet and a MTCA of 3200 feet. Could you already descend to 3300 feet before LZR and start your approach from there?
If you have been cleared on the TERTO 1Q arrival, then you fly the TERTO 1Q arrival, which involves maintaining 5000 ft to the LZR VOR.
If you have been cleared
direct to LZR at a lower level, then you fly direct to LZR at that level. ATC is responsible for assigning a level on a direct clearance that is terrain safe, and you can (and should) check that by comparing with MTCA or MSA.