sunday world jumbo

[tadoran]

Thanks for all help last few
48d acronym for a well known type of weapon of mass destruction (4) ?c?m
53


a any of various light dry strong wines from spain and the canary islands imported to england in the 16th and 17th centuries (4) s?c?
75d the bone of the carpus opposite the ulna (6) ??n?s?
66d any insect of the order ephemeroptera having delicate membranes wings with the fron pair much larger than the rear and having an adult stage usually lasting less than two days (8) m???l?e?
74a an aromatic cosmetic liquid originally prepared by distilling the leaves of a tree in rum and water but now usually made by mixing the oil from those leaves with other solvents (3,3) b?? ?r?
76a a nihilistic artistic movement of the early 20th century in west europe and the u.s. (often with ism added to the name) (4) da?a

[MarkRae]

48d ICBM (inter-continental ballistic missile) - again, this isn't actually an acronym...
53a SACK
75d Are you sure the existing letters are correct? The bone next to the ulna is the RADIUS
66d MAYFLIES
76a DADA

[tadoran]

Thanks Markrae, The n is from lang clue no 81 a scottish song of old times and recollections sung for the new year
I thought is Auld lang syne and the s is clue no.88 originally used to spot incoming planes in world war11, it now has many other functions I have sonar

[starmack]

probably answered since but your bone == ulnare and radar is your other answer, not sonar.

Just finishing off my own own entry!