Picked it up a couple of hours ago. Half way there.
Have not solved all the clues.
Have guessed one combination of loser and item lost.
I can guess 6a but do not know what to pair with.
Hint on 15d and 27a to start with.
15 Hush surrounding habitual
response for line of verse (5)
27 Briefly express disapproval in
front of an Aussie tree-hugger (4)
Thanks.