18a opening for those on the lookout may require such paperwork.(6,8) -e---h ---r-n-- 26a like the PM fellow with little time to be an administrator(9)i---n---- 3d like net that could get curlier with initial couple of tangles(9)r-t---l-- 17d square root of minus one, not everybody attempts to get this mathematical concept(8) ---m---y sorry put it down as everyman first time