1a, Constant evil distasteful in sycophantic campaign (5,9) C???? / ???E?S?V?
3d, Male is often confused about double parking in this state (11) ????I?S?P??
16d, Child coming to changing of the guard (8) ?A?????R
18d, Fifty in queen's family ? Thats not so big (7) L?????R