1 inhuman but takes in redhead, a learner [6] ?????l
2 one on the lookout reaches turning right at the end [8] ?e?????r - sth like revealer ?
3 cast finished, say [5] ????w
4 clear backlog of sauce in america [7] ca???u? - caracus ?
5 coffee and after short time, tea [5] ????a - initially thought either cocoa or cuppa but the 3rd letter is 4th letter of clue 4 above so don't think either of these are right