9 across. Cockeyed with draught-most of kebab is left (4-5) ????/W????11 11 11 across. Work on engine's air increase (4-2) ????/U?
19 across. Brand's very loud exit (3,3) ???/O?F
28 across. Swim in calm is happy coincidence (11) ??????????Y
16 down. 8 failing to start if translated from Latin for even more convincing reasons (1,8)
Thank you