I'm a bit slow in finishing this one - spent Saturday at a wedding then most of Sunday in the recovery position...Anyhoo, I'm troubled by the last two: 41 across 'Deceptive, misleading' (10) -a-l-cious and 21 down 'giant grass' (6) for which I originally had 'pampas' but can now see the letters are -a-b-i
any help would be appreciated!