Bees, I enjoyed the little trip down memory lane, though I am not good at names!
15 A. The definition is 'to be an un umpire' (non -sporting). The large body of water often appears in crosswords, followed by 'one' and a simple 'swallowed'.
Bees, I haven't seen the puzzle so I don't know about 12 A. In your query, I wasn't sure if the fourth letter was 'i' or 'l' - they sometimes look identical on this Forum!
Hi Bees
Good to see that you are still around .
Yes, Pipesmoker was John from Arran and I remember the problems he had travelling to the specialist hospital from the island . Maybe other RTers will pop in to say hello to us.
Stay safe and well