bookworm:
I'm sorry for labouring this one, but it does seem that there's still an ambiguity. If I'm inbound on track 343 to TGO on the REUTL4A arrival and cleared for the approach with no mention of the hold, surely I'm supposed to make a 90 degree left turn on to 254, and the procedure designer is supposed to check that I can do so safely, because it's part of the classic arrival-approach depicted in PANS-OPS fig I-4-1-1 "Segments of instrument approach". But because there's a hold depicted there turning left from the inbound leg is suddenly unprotected?!
Indeed, if you arrive via the TGO 343 radial (without an instruction to hold) you turn left to intercept the 254 radial. And, in my circumstance of being in the hold then turning right to a heading of 300 degrees to intercept the TGO 254 radial, I would subsequently turn left from that 300 degree heading to intercept the 254 radial.