So what is the clue for 19 d?
Is it "e??????n"
Or is it "there is a rising squiggle which drops to starting level at the end"
There is a thing in NZ where a squigly line called the worm is used to guage peoples feelings in election debates.
3d - Train of thought? Train for an event? Strange clue, maybe the double clue indicates a train chugging down the track?