7d) Three big fit men collapsed, inhaling oxygen temporary. (3,3,4,5) F?? ??? ???? ????G
(12a) Learn latin sitting in awfully plush chairs. (11) no letters.
14a) Charlie Brown that is ousted by a quack (9) ????L????
16d) Bad treatment beginning to make Susie unwell (6) no letters
Any help greatly appreciated