16A is RA(LL)Y = "ray" but its first letter is a conflict as 6D must be either ASTI or ASCI (not sure which.
12D is "Fallow" which can also mean a mustard colour ; the discarded word is "nursery", not "smear" which is the anagram indicator.
I'm still puzzled by 35dn which is either "carks" or "karks", an Australian word for "dies" as is the phrase "go bung", but what is the other "vessel" and which is the correct first letter? Merry Christmas